diff --git a/doc/release-notes/rl-2511.section.md b/doc/release-notes/rl-2511.section.md
index 2a90ec5891e5..2c5eb1492217 100644
--- a/doc/release-notes/rl-2511.section.md
+++ b/doc/release-notes/rl-2511.section.md
@@ -61,6 +61,10 @@
 - `reaction` has been updated to version 2, which includes some breaking changes.
   For more information, [check the release article](https://blog.ppom.me/en-reaction-v2).
 
+- The `buildPythonPackage` and `buildPythonApplication` functions now require
+  an explicit `format` attribute. Previously the default format used setuptools
+  and called `setup.py` from the source tree, which is deprecated.
+  The modern alternative is to configure `pyproject = true` with `build-system = [ setuptools ]`.
 
 ### Deprecations {#sec-nixpkgs-release-25.11-lib-deprecations}
 
diff --git a/nixos/modules/services/misc/taskserver/default.nix b/nixos/modules/services/misc/taskserver/default.nix
index dc9033b5a23b..72fff29e1052 100644
--- a/nixos/modules/services/misc/taskserver/default.nix
+++ b/nixos/modules/services/misc/taskserver/default.nix
@@ -137,6 +137,7 @@ let
   nixos-taskserver =
     with pkgs.python3.pkgs;
     buildPythonApplication {
+      format = "setuptools";
       name = "nixos-taskserver";
 
       src = pkgs.runCommand "nixos-taskserver-src" { preferLocalBuild = true; } ''
diff --git a/nixos/tests/systemd-confinement/default.nix b/nixos/tests/systemd-confinement/default.nix
index 905a2272c0fb..25a553380189 100644
--- a/nixos/tests/systemd-confinement/default.nix
+++ b/nixos/tests/systemd-confinement/default.nix
@@ -6,6 +6,7 @@ import ../make-test-python.nix {
     let
       testLib = pkgs.python3Packages.buildPythonPackage {
         name = "confinement-testlib";
+        format = "setuptools";
         unpackPhase = ''
           cat > setup.py <<EOF
           from setuptools import setup
diff --git a/pkgs/applications/audio/greg/default.nix b/pkgs/applications/audio/greg/default.nix
index dc9fb72f4425..edf739416cac 100644
--- a/pkgs/applications/audio/greg/default.nix
+++ b/pkgs/applications/audio/greg/default.nix
@@ -8,6 +8,7 @@ with pythonPackages;
 buildPythonApplication rec {
   pname = "greg";
   version = "0.4.8";
+  format = "setuptools";
 
   disabled = !isPy3k;
 
diff --git a/pkgs/applications/audio/hushboard/default.nix b/pkgs/applications/audio/hushboard/default.nix
index 19b072a361e2..b354be1ac63c 100644
--- a/pkgs/applications/audio/hushboard/default.nix
+++ b/pkgs/applications/audio/hushboard/default.nix
@@ -17,6 +17,7 @@
 buildPythonApplication {
   pname = "hushboard";
   version = "unstable-2021-03-17";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "stuartlangridge";
diff --git a/pkgs/applications/audio/mopidy/bandcamp.nix b/pkgs/applications/audio/mopidy/bandcamp.nix
index 3d3d074aaf82..6e4e4e71f0bd 100644
--- a/pkgs/applications/audio/mopidy/bandcamp.nix
+++ b/pkgs/applications/audio/mopidy/bandcamp.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "Mopidy-Bandcamp";
   version = "1.1.5";
+  format = "setuptools";
   src = fetchPypi {
     inherit pname version;
     hash = "sha256-wg9zcOKfZQRhpyA1Cu5wvdwKpmrlcr2m9mrqBHgUXAQ=";
diff --git a/pkgs/applications/audio/mopidy/iris.nix b/pkgs/applications/audio/mopidy/iris.nix
index d07b29452832..902d2cd68161 100644
--- a/pkgs/applications/audio/mopidy/iris.nix
+++ b/pkgs/applications/audio/mopidy/iris.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "Mopidy-Iris";
   version = "3.69.3";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/applications/audio/mopidy/jellyfin.nix b/pkgs/applications/audio/mopidy/jellyfin.nix
index 2fa97278fc96..556b8db53cd3 100644
--- a/pkgs/applications/audio/mopidy/jellyfin.nix
+++ b/pkgs/applications/audio/mopidy/jellyfin.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "mopidy-jellyfin";
   version = "1.0.6";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit version;
diff --git a/pkgs/applications/audio/mopidy/local.nix b/pkgs/applications/audio/mopidy/local.nix
index ccaf71275967..ca3af96f5589 100644
--- a/pkgs/applications/audio/mopidy/local.nix
+++ b/pkgs/applications/audio/mopidy/local.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "Mopidy-Local";
   version = "3.3.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit version;
diff --git a/pkgs/applications/audio/mopidy/moped.nix b/pkgs/applications/audio/mopidy/moped.nix
index edb94a5a02c9..6a6cbcdac100 100644
--- a/pkgs/applications/audio/mopidy/moped.nix
+++ b/pkgs/applications/audio/mopidy/moped.nix
@@ -9,6 +9,7 @@
 pythonPackages.buildPythonApplication rec {
   pname = "Mopidy-Moped";
   version = "0.7.1";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/applications/audio/mopidy/mopidy.nix b/pkgs/applications/audio/mopidy/mopidy.nix
index 32e9e00d468f..d6a98f1cf042 100644
--- a/pkgs/applications/audio/mopidy/mopidy.nix
+++ b/pkgs/applications/audio/mopidy/mopidy.nix
@@ -14,6 +14,7 @@
 pythonPackages.buildPythonApplication rec {
   pname = "mopidy";
   version = "3.4.2";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "mopidy";
diff --git a/pkgs/applications/audio/mopidy/mopify.nix b/pkgs/applications/audio/mopidy/mopify.nix
index ca27c0f71706..7564c1a63ad3 100644
--- a/pkgs/applications/audio/mopidy/mopify.nix
+++ b/pkgs/applications/audio/mopidy/mopify.nix
@@ -8,6 +8,7 @@
 pythonPackages.buildPythonApplication rec {
   pname = "Mopidy-Mopify";
   version = "1.7.3";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/applications/audio/mopidy/mpd.nix b/pkgs/applications/audio/mopidy/mpd.nix
index ac4073979e79..3a49579d1dad 100644
--- a/pkgs/applications/audio/mopidy/mpd.nix
+++ b/pkgs/applications/audio/mopidy/mpd.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "Mopidy-MPD";
   version = "3.3.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/applications/audio/mopidy/mpris.nix b/pkgs/applications/audio/mopidy/mpris.nix
index 5b0e09432a2e..56cfbfc462e6 100644
--- a/pkgs/applications/audio/mopidy/mpris.nix
+++ b/pkgs/applications/audio/mopidy/mpris.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "mopidy-mpris";
   version = "3.0.3";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit version;
diff --git a/pkgs/applications/audio/mopidy/muse.nix b/pkgs/applications/audio/mopidy/muse.nix
index c70a874593e0..24f4e5ad06fe 100644
--- a/pkgs/applications/audio/mopidy/muse.nix
+++ b/pkgs/applications/audio/mopidy/muse.nix
@@ -8,6 +8,7 @@
 pythonPackages.buildPythonApplication rec {
   pname = "mopidy-muse";
   version = "0.0.33";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit version;
diff --git a/pkgs/applications/audio/mopidy/musicbox-webclient.nix b/pkgs/applications/audio/mopidy/musicbox-webclient.nix
index 13325c27668e..53d70fac4768 100644
--- a/pkgs/applications/audio/mopidy/musicbox-webclient.nix
+++ b/pkgs/applications/audio/mopidy/musicbox-webclient.nix
@@ -8,6 +8,7 @@
 pythonPackages.buildPythonApplication rec {
   pname = "mopidy-musicbox-webclient";
   version = "3.1.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "pimusicbox";
diff --git a/pkgs/applications/audio/mopidy/notify.nix b/pkgs/applications/audio/mopidy/notify.nix
index 8967dcaf0ae7..26ad581b3263 100644
--- a/pkgs/applications/audio/mopidy/notify.nix
+++ b/pkgs/applications/audio/mopidy/notify.nix
@@ -8,6 +8,7 @@
 pythonPackages.buildPythonApplication rec {
   pname = "Mopidy-Notify";
   version = "0.2.1";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/applications/audio/mopidy/podcast.nix b/pkgs/applications/audio/mopidy/podcast.nix
index f84389dd18b4..4ccc51f301aa 100644
--- a/pkgs/applications/audio/mopidy/podcast.nix
+++ b/pkgs/applications/audio/mopidy/podcast.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "mopidy-podcast";
   version = "3.0.1";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit version;
diff --git a/pkgs/applications/audio/mopidy/scrobbler.nix b/pkgs/applications/audio/mopidy/scrobbler.nix
index 8a4d33619d14..c45c31cb343b 100644
--- a/pkgs/applications/audio/mopidy/scrobbler.nix
+++ b/pkgs/applications/audio/mopidy/scrobbler.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "Mopidy-Scrobbler";
   version = "2.0.1";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/applications/audio/mopidy/somafm.nix b/pkgs/applications/audio/mopidy/somafm.nix
index ee7f63d7a24a..9266b034919b 100644
--- a/pkgs/applications/audio/mopidy/somafm.nix
+++ b/pkgs/applications/audio/mopidy/somafm.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "mopidy-somafm";
   version = "2.0.2";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit version;
diff --git a/pkgs/applications/audio/mopidy/soundcloud.nix b/pkgs/applications/audio/mopidy/soundcloud.nix
index a601cc2196a6..2295b41d258d 100644
--- a/pkgs/applications/audio/mopidy/soundcloud.nix
+++ b/pkgs/applications/audio/mopidy/soundcloud.nix
@@ -8,6 +8,7 @@
 pythonPackages.buildPythonApplication rec {
   pname = "mopidy-soundcloud";
   version = "3.0.2";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "mopidy";
diff --git a/pkgs/applications/audio/mopidy/subidy.nix b/pkgs/applications/audio/mopidy/subidy.nix
index 0891d19f8a8f..618fd5e4242e 100644
--- a/pkgs/applications/audio/mopidy/subidy.nix
+++ b/pkgs/applications/audio/mopidy/subidy.nix
@@ -8,6 +8,7 @@
 pythonPackages.buildPythonApplication rec {
   pname = "mopidy-subidy";
   version = "1.0.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "Prior99";
diff --git a/pkgs/applications/audio/mopidy/tunein.nix b/pkgs/applications/audio/mopidy/tunein.nix
index e536d81ddece..778550beb0a1 100644
--- a/pkgs/applications/audio/mopidy/tunein.nix
+++ b/pkgs/applications/audio/mopidy/tunein.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "mopidy-tunein";
   version = "1.1.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit version;
diff --git a/pkgs/applications/blockchains/cryptop/default.nix b/pkgs/applications/blockchains/cryptop/default.nix
index 61ab913b2e15..c4689d82f4ca 100644
--- a/pkgs/applications/blockchains/cryptop/default.nix
+++ b/pkgs/applications/blockchains/cryptop/default.nix
@@ -10,6 +10,7 @@
 buildPythonApplication rec {
   pname = "cryptop";
   version = "0.2.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/applications/editors/formiko/default.nix b/pkgs/applications/editors/formiko/default.nix
index 672cb738f4a9..2c1f7791fb15 100644
--- a/pkgs/applications/editors/formiko/default.nix
+++ b/pkgs/applications/editors/formiko/default.nix
@@ -16,6 +16,7 @@
 buildPythonApplication rec {
   pname = "formiko";
   version = "1.5.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "ondratu";
diff --git a/pkgs/applications/editors/jupyter-kernels/coq/kernel.nix b/pkgs/applications/editors/jupyter-kernels/coq/kernel.nix
index 1fd032e465f0..d4ad6d14fe07 100644
--- a/pkgs/applications/editors/jupyter-kernels/coq/kernel.nix
+++ b/pkgs/applications/editors/jupyter-kernels/coq/kernel.nix
@@ -8,6 +8,7 @@
 python3.pkgs.buildPythonPackage rec {
   pname = "coq-jupyter";
   version = "1.6.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "EugeneLoy";
diff --git a/pkgs/applications/editors/jupyter-kernels/octave/kernel.nix b/pkgs/applications/editors/jupyter-kernels/octave/kernel.nix
index e21608970e6d..dba9bfeefc1c 100644
--- a/pkgs/applications/editors/jupyter-kernels/octave/kernel.nix
+++ b/pkgs/applications/editors/jupyter-kernels/octave/kernel.nix
@@ -9,6 +9,7 @@ with python3Packages;
 buildPythonPackage rec {
   pname = "octave-kernel";
   version = "0.34.2";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "octave_kernel";
diff --git a/pkgs/applications/graphics/inkscape/extensions/textext/default.nix b/pkgs/applications/graphics/inkscape/extensions/textext/default.nix
index 44530fb30a16..2d17a745202b 100644
--- a/pkgs/applications/graphics/inkscape/extensions/textext/default.nix
+++ b/pkgs/applications/graphics/inkscape/extensions/textext/default.nix
@@ -22,6 +22,7 @@ in
 python3.pkgs.buildPythonApplication rec {
   pname = "textext";
   version = "1.11.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "textext";
diff --git a/pkgs/applications/graphics/kcc/default.nix b/pkgs/applications/graphics/kcc/default.nix
index 0eeddade1d58..4806bfefd9a3 100644
--- a/pkgs/applications/graphics/kcc/default.nix
+++ b/pkgs/applications/graphics/kcc/default.nix
@@ -10,6 +10,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "kcc";
   version = "5.5.1";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit version;
diff --git a/pkgs/applications/graphics/veusz/default.nix b/pkgs/applications/graphics/veusz/default.nix
index 47c4498f3ed0..563d479b9924 100644
--- a/pkgs/applications/graphics/veusz/default.nix
+++ b/pkgs/applications/graphics/veusz/default.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "veusz";
   version = "4.1";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/applications/misc/avell-unofficial-control-center/default.nix b/pkgs/applications/misc/avell-unofficial-control-center/default.nix
index 4a8440da0cc2..8001a3d168cf 100644
--- a/pkgs/applications/misc/avell-unofficial-control-center/default.nix
+++ b/pkgs/applications/misc/avell-unofficial-control-center/default.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication {
   pname = "avell-unofficial-control-center";
   version = "1.0.4";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "rodgomesc";
diff --git a/pkgs/applications/misc/dmensamenu/default.nix b/pkgs/applications/misc/dmensamenu/default.nix
index 447cb0d37794..a7703ee844f0 100644
--- a/pkgs/applications/misc/dmensamenu/default.nix
+++ b/pkgs/applications/misc/dmensamenu/default.nix
@@ -10,6 +10,7 @@
 buildPythonApplication rec {
   pname = "dmensamenu";
   version = "1.2.2";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "dotlambda";
diff --git a/pkgs/applications/misc/electrum/default.nix b/pkgs/applications/misc/electrum/default.nix
index 4d26bf266e5d..814427c22de7 100644
--- a/pkgs/applications/misc/electrum/default.nix
+++ b/pkgs/applications/misc/electrum/default.nix
@@ -34,6 +34,7 @@ in
 python3.pkgs.buildPythonApplication rec {
   pname = "electrum";
   version = "4.5.8";
+  format = "setuptools";
 
   src = fetchurl {
     url = "https://download.electrum.org/${version}/Electrum-${version}.tar.gz";
diff --git a/pkgs/applications/misc/electrum/grs.nix b/pkgs/applications/misc/electrum/grs.nix
index 14a25f70836e..5c537eaab08b 100644
--- a/pkgs/applications/misc/electrum/grs.nix
+++ b/pkgs/applications/misc/electrum/grs.nix
@@ -34,6 +34,7 @@ in
 python3.pkgs.buildPythonApplication {
   pname = "electrum-grs";
   inherit version;
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "Groestlcoin";
diff --git a/pkgs/applications/misc/electrum/ltc.nix b/pkgs/applications/misc/electrum/ltc.nix
index 51df5b17b99d..5451e89cf459 100644
--- a/pkgs/applications/misc/electrum/ltc.nix
+++ b/pkgs/applications/misc/electrum/ltc.nix
@@ -48,6 +48,7 @@ in
 python3.pkgs.buildPythonApplication {
   pname = "electrum-ltc";
   inherit version;
+  format = "setuptools";
 
   src = fetchurl {
     url = "https://electrum-ltc.org/download/Electrum-LTC-${version}.tar.gz";
diff --git a/pkgs/applications/misc/hovercraft/default.nix b/pkgs/applications/misc/hovercraft/default.nix
index a6c478051703..a9c882443d0f 100644
--- a/pkgs/applications/misc/hovercraft/default.nix
+++ b/pkgs/applications/misc/hovercraft/default.nix
@@ -16,6 +16,7 @@
 buildPythonApplication rec {
   pname = "hovercraft";
   version = "2.7";
+  format = "setuptools";
   disabled = !isPy3k;
 
   src = fetchFromGitHub {
diff --git a/pkgs/applications/misc/hue-plus/default.nix b/pkgs/applications/misc/hue-plus/default.nix
index 637f37d504be..c7703c6931bb 100644
--- a/pkgs/applications/misc/hue-plus/default.nix
+++ b/pkgs/applications/misc/hue-plus/default.nix
@@ -9,6 +9,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "hue-plus";
   version = "1.4.5";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "kusti8";
diff --git a/pkgs/applications/misc/mu-repo/default.nix b/pkgs/applications/misc/mu-repo/default.nix
index 7b72cf93982c..8948f9317f54 100644
--- a/pkgs/applications/misc/mu-repo/default.nix
+++ b/pkgs/applications/misc/mu-repo/default.nix
@@ -11,6 +11,7 @@
 buildPythonApplication rec {
   pname = "mu-repo";
   version = "1.9.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "fabioz";
diff --git a/pkgs/applications/misc/plover/default.nix b/pkgs/applications/misc/plover/default.nix
index 1a9e75b7cb70..007cb55caf02 100644
--- a/pkgs/applications/misc/plover/default.nix
+++ b/pkgs/applications/misc/plover/default.nix
@@ -14,6 +14,7 @@
     mkDerivationWith buildPythonPackage rec {
       pname = "plover";
       version = "4.0.2";
+      format = "setuptools";
 
       meta = with lib; {
         broken = stdenv.hostPlatform.isDarwin;
diff --git a/pkgs/applications/misc/remarkable/remarkable-mouse/default.nix b/pkgs/applications/misc/remarkable/remarkable-mouse/default.nix
index 65f704a8a8d6..ec12849f5547 100644
--- a/pkgs/applications/misc/remarkable/remarkable-mouse/default.nix
+++ b/pkgs/applications/misc/remarkable/remarkable-mouse/default.nix
@@ -11,6 +11,7 @@
 buildPythonApplication rec {
   pname = "remarkable-mouse";
   version = "7.1.1";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/applications/misc/termdown/default.nix b/pkgs/applications/misc/termdown/default.nix
index 5e1ba20b4e82..6e1a4172bd27 100644
--- a/pkgs/applications/misc/termdown/default.nix
+++ b/pkgs/applications/misc/termdown/default.nix
@@ -11,6 +11,7 @@
 buildPythonApplication rec {
   pname = "termdown";
   version = "1.18.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "trehn";
diff --git a/pkgs/applications/misc/termpdf.py/default.nix b/pkgs/applications/misc/termpdf.py/default.nix
index 9997f53ca3fb..1c88c1edd8a6 100644
--- a/pkgs/applications/misc/termpdf.py/default.nix
+++ b/pkgs/applications/misc/termpdf.py/default.nix
@@ -16,6 +16,7 @@
 buildPythonApplication {
   pname = "termpdf.py";
   version = "2022-03-28";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "dsanson";
diff --git a/pkgs/applications/misc/twitch-chat-downloader/default.nix b/pkgs/applications/misc/twitch-chat-downloader/default.nix
index e3b42c54a198..d076a579874e 100644
--- a/pkgs/applications/misc/twitch-chat-downloader/default.nix
+++ b/pkgs/applications/misc/twitch-chat-downloader/default.nix
@@ -10,6 +10,7 @@
 buildPythonApplication rec {
   pname = "twitch-chat-downloader";
   version = "2.5.4";
+  format = "setuptools";
 
   # NOTE: Using maintained fork because upstream has stopped working, and it has
   # not been updated in a while.
diff --git a/pkgs/applications/misc/visidata/default.nix b/pkgs/applications/misc/visidata/default.nix
index 7bb38e8b0d1b..c199f3223ab6 100644
--- a/pkgs/applications/misc/visidata/default.nix
+++ b/pkgs/applications/misc/visidata/default.nix
@@ -52,6 +52,7 @@
 buildPythonApplication rec {
   pname = "visidata";
   version = "3.1.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "saulpw";
diff --git a/pkgs/applications/misc/wikicurses/default.nix b/pkgs/applications/misc/wikicurses/default.nix
index 64f8f2cbac36..290d0cae5c0d 100644
--- a/pkgs/applications/misc/wikicurses/default.nix
+++ b/pkgs/applications/misc/wikicurses/default.nix
@@ -6,6 +6,7 @@
 
 pythonPackages.buildPythonApplication rec {
   version = "1.4";
+  format = "setuptools";
   pname = "wikicurses";
 
   src = fetchFromGitHub {
diff --git a/pkgs/applications/misc/yokadi/default.nix b/pkgs/applications/misc/yokadi/default.nix
index 53d8f84371ae..2922ac095448 100644
--- a/pkgs/applications/misc/yokadi/default.nix
+++ b/pkgs/applications/misc/yokadi/default.nix
@@ -12,6 +12,7 @@
 buildPythonApplication rec {
   pname = "yokadi";
   version = "1.3.0";
+  format = "setuptools";
 
   src = fetchurl {
     url = "https://yokadi.github.io/download/${pname}-${version}.tar.gz";
diff --git a/pkgs/applications/networking/browsers/av-98/default.nix b/pkgs/applications/networking/browsers/av-98/default.nix
index 1356adff7973..53f3ca0ab129 100644
--- a/pkgs/applications/networking/browsers/av-98/default.nix
+++ b/pkgs/applications/networking/browsers/av-98/default.nix
@@ -6,6 +6,7 @@
 python3Packages.buildPythonApplication {
   pname = "av-98";
   version = "1.0.2dev";
+  format = "setuptools";
 
   src = fetchgit {
     url = "https://tildegit.org/solderpunk/AV-98.git";
diff --git a/pkgs/applications/networking/browsers/webmacs/default.nix b/pkgs/applications/networking/browsers/webmacs/default.nix
index fbec74002d1f..ae185be04e7b 100644
--- a/pkgs/applications/networking/browsers/webmacs/default.nix
+++ b/pkgs/applications/networking/browsers/webmacs/default.nix
@@ -12,6 +12,7 @@ mkDerivationWith python3Packages.buildPythonApplication rec {
 
   pname = "webmacs";
   version = "0.8";
+  format = "setuptools";
 
   disabled = python3Packages.isPy27;
 
diff --git a/pkgs/applications/networking/feedreaders/rss2email/default.nix b/pkgs/applications/networking/feedreaders/rss2email/default.nix
index 7dba7e9684b9..c13135dbb31b 100644
--- a/pkgs/applications/networking/feedreaders/rss2email/default.nix
+++ b/pkgs/applications/networking/feedreaders/rss2email/default.nix
@@ -11,6 +11,7 @@ with pythonPackages;
 buildPythonApplication rec {
   pname = "rss2email";
   version = "3.14";
+  format = "setuptools";
 
   propagatedBuildInputs = [
     feedparser
diff --git a/pkgs/applications/networking/gns3/gui.nix b/pkgs/applications/networking/gns3/gui.nix
index f1f14ad917d0..0debbd9c4752 100644
--- a/pkgs/applications/networking/gns3/gui.nix
+++ b/pkgs/applications/networking/gns3/gui.nix
@@ -17,6 +17,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "gns3-gui";
   inherit version;
+  format = "setuptools";
 
   src = fetchFromGitHub {
     inherit hash;
diff --git a/pkgs/applications/networking/gns3/server.nix b/pkgs/applications/networking/gns3/server.nix
index ba36823fb938..a0ece3a08305 100644
--- a/pkgs/applications/networking/gns3/server.nix
+++ b/pkgs/applications/networking/gns3/server.nix
@@ -19,6 +19,7 @@
 python3Packages.buildPythonApplication {
   pname = "gns3-server";
   inherit version;
+  format = "setuptools";
 
   src = fetchFromGitHub {
     inherit hash;
diff --git a/pkgs/applications/networking/instant-messengers/telegram/tg/default.nix b/pkgs/applications/networking/instant-messengers/telegram/tg/default.nix
index efa7dffdae71..26f850e0726b 100644
--- a/pkgs/applications/networking/instant-messengers/telegram/tg/default.nix
+++ b/pkgs/applications/networking/instant-messengers/telegram/tg/default.nix
@@ -12,6 +12,7 @@
 buildPythonApplication rec {
   pname = "tg";
   version = "0.19.0";
+  format = "setuptools";
   disabled = pythonOlder "3.8";
 
   src = fetchFromGitHub {
diff --git a/pkgs/applications/networking/irc/weechat/scripts/weechat-otr/default.nix b/pkgs/applications/networking/irc/weechat/scripts/weechat-otr/default.nix
index e38f41555898..523fd6bf1c52 100644
--- a/pkgs/applications/networking/irc/weechat/scripts/weechat-otr/default.nix
+++ b/pkgs/applications/networking/irc/weechat/scripts/weechat-otr/default.nix
@@ -18,6 +18,7 @@ let
   pycrypto = python3Packages.buildPythonPackage rec {
     pname = "pycrypto";
     version = "2.6.1-13.1";
+    format = "setuptools";
 
     src = fetchgit {
       url = "https://salsa.debian.org/sramacher/python-crypto.git";
diff --git a/pkgs/applications/networking/mailreaders/mailnag/default.nix b/pkgs/applications/networking/mailreaders/mailnag/default.nix
index 77aa89e029a1..65e5332d2039 100644
--- a/pkgs/applications/networking/mailreaders/mailnag/default.nix
+++ b/pkgs/applications/networking/mailreaders/mailnag/default.nix
@@ -25,6 +25,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "mailnag";
   version = "2.2.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "pulb";
diff --git a/pkgs/applications/networking/mailreaders/mailnag/goa-plugin.nix b/pkgs/applications/networking/mailreaders/mailnag/goa-plugin.nix
index 3b32debe0f14..a163a56e5315 100644
--- a/pkgs/applications/networking/mailreaders/mailnag/goa-plugin.nix
+++ b/pkgs/applications/networking/mailreaders/mailnag/goa-plugin.nix
@@ -9,6 +9,7 @@
 python3Packages.buildPythonPackage rec {
   pname = "mailnag-goa-plugin";
   version = "2.0.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "pulb";
diff --git a/pkgs/applications/networking/mkchromecast/default.nix b/pkgs/applications/networking/mkchromecast/default.nix
index e431ad81b6af..3bbe97d7538c 100644
--- a/pkgs/applications/networking/mkchromecast/default.nix
+++ b/pkgs/applications/networking/mkchromecast/default.nix
@@ -34,6 +34,7 @@ in
 python3Packages.buildPythonApplication {
   pname = "mkchromecast-unstable";
   version = "2022-10-31";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "muammar";
diff --git a/pkgs/applications/networking/p2p/deluge/default.nix b/pkgs/applications/networking/p2p/deluge/default.nix
index 668bd4298d66..183191f7a825 100644
--- a/pkgs/applications/networking/p2p/deluge/default.nix
+++ b/pkgs/applications/networking/p2p/deluge/default.nix
@@ -22,6 +22,7 @@ let
     pypkgs.buildPythonPackage rec {
       inherit pname;
       version = "2.2.0";
+      format = "setuptools";
 
       src = fetchurl {
         url = "http://download.deluge-torrent.org/source/${lib.versions.majorMinor version}/deluge-${version}.tar.xz";
diff --git a/pkgs/applications/networking/sync/acd_cli/default.nix b/pkgs/applications/networking/sync/acd_cli/default.nix
index f782cc9937b4..4124fe379d1c 100644
--- a/pkgs/applications/networking/sync/acd_cli/default.nix
+++ b/pkgs/applications/networking/sync/acd_cli/default.nix
@@ -16,6 +16,7 @@
 buildPythonApplication rec {
   pname = "acd_cli";
   version = "0.3.2";
+  format = "setuptools";
 
   doCheck = false;
 
diff --git a/pkgs/applications/office/qnotero/default.nix b/pkgs/applications/office/qnotero/default.nix
index e8ad77bca307..eba25348f306 100644
--- a/pkgs/applications/office/qnotero/default.nix
+++ b/pkgs/applications/office/qnotero/default.nix
@@ -10,6 +10,7 @@ python3Packages.buildPythonPackage rec {
   pname = "qnotero";
 
   version = "2.3.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "ealbiter";
diff --git a/pkgs/applications/radio/openwebrx/default.nix b/pkgs/applications/radio/openwebrx/default.nix
index e9d9c0c0d6f9..b22e3dd4236f 100644
--- a/pkgs/applications/radio/openwebrx/default.nix
+++ b/pkgs/applications/radio/openwebrx/default.nix
@@ -25,6 +25,7 @@ let
   js8py = buildPythonPackage rec {
     pname = "js8py";
     version = "0.1.1";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "jketterl";
@@ -83,6 +84,7 @@ in
 buildPythonApplication rec {
   pname = "openwebrx";
   version = "1.2.2";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "jketterl";
diff --git a/pkgs/applications/science/biology/obitools/obitools3.nix b/pkgs/applications/science/biology/obitools/obitools3.nix
index 8470b37699de..501b7f9c6750 100644
--- a/pkgs/applications/science/biology/obitools/obitools3.nix
+++ b/pkgs/applications/science/biology/obitools/obitools3.nix
@@ -10,6 +10,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "obitools3";
   version = "3.0.1b11";
+  format = "setuptools";
 
   src = fetchurl {
     url = "https://git.metabarcoding.org/obitools/${pname}/repository/v${version}/archive.tar.gz";
diff --git a/pkgs/applications/science/robotics/mavproxy/default.nix b/pkgs/applications/science/robotics/mavproxy/default.nix
index ff3cee1e5f59..45db22699e42 100644
--- a/pkgs/applications/science/robotics/mavproxy/default.nix
+++ b/pkgs/applications/science/robotics/mavproxy/default.nix
@@ -18,6 +18,7 @@
 buildPythonApplication rec {
   pname = "MAVProxy";
   version = "1.8.71";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "ArduPilot";
diff --git a/pkgs/applications/version-management/git-annex-metadata-gui/default.nix b/pkgs/applications/version-management/git-annex-metadata-gui/default.nix
index 08f8e17eae1f..31be748ce9d2 100644
--- a/pkgs/applications/version-management/git-annex-metadata-gui/default.nix
+++ b/pkgs/applications/version-management/git-annex-metadata-gui/default.nix
@@ -10,6 +10,7 @@
 buildPythonApplication rec {
   pname = "git-annex-metadata-gui";
   version = "0.2.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "alpernebbi";
diff --git a/pkgs/applications/version-management/git-annex-remote-dbx/default.nix b/pkgs/applications/version-management/git-annex-remote-dbx/default.nix
index c969087e39be..5698123d4696 100644
--- a/pkgs/applications/version-management/git-annex-remote-dbx/default.nix
+++ b/pkgs/applications/version-management/git-annex-remote-dbx/default.nix
@@ -10,6 +10,7 @@
 buildPythonApplication rec {
   pname = "git-annex-remote-dbx";
   version = "1.0.3";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/applications/version-management/git-archive-all/default.nix b/pkgs/applications/version-management/git-archive-all/default.nix
index d43c2359e377..30bcbe8beb39 100644
--- a/pkgs/applications/version-management/git-archive-all/default.nix
+++ b/pkgs/applications/version-management/git-archive-all/default.nix
@@ -11,6 +11,7 @@
 buildPythonApplication rec {
   pname = "git-archive-all";
   version = "1.23.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "Kentzo";
diff --git a/pkgs/applications/version-management/git-imerge/default.nix b/pkgs/applications/version-management/git-imerge/default.nix
index 95e971f3cdca..c096a472f2dc 100644
--- a/pkgs/applications/version-management/git-imerge/default.nix
+++ b/pkgs/applications/version-management/git-imerge/default.nix
@@ -8,6 +8,7 @@
 buildPythonApplication rec {
   pname = "git-imerge";
   version = "1.2.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/applications/version-management/git-repo-updater/default.nix b/pkgs/applications/version-management/git-repo-updater/default.nix
index 8fda8e8b7a1c..d724bd6d8c38 100644
--- a/pkgs/applications/version-management/git-repo-updater/default.nix
+++ b/pkgs/applications/version-management/git-repo-updater/default.nix
@@ -9,6 +9,7 @@
 buildPythonApplication rec {
   pname = "gitup";
   version = "0.5.1";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/applications/version-management/git-review/default.nix b/pkgs/applications/version-management/git-review/default.nix
index c0881a7e2aa9..783a2525f2a8 100644
--- a/pkgs/applications/version-management/git-review/default.nix
+++ b/pkgs/applications/version-management/git-review/default.nix
@@ -11,6 +11,7 @@
 buildPythonApplication rec {
   pname = "git-review";
   version = "2.5.0";
+  format = "setuptools";
 
   # Manually set version because prb wants to get it from the git
   # upstream repository (and we are installing from tarball instead)
diff --git a/pkgs/applications/version-management/gita/default.nix b/pkgs/applications/version-management/gita/default.nix
index 433ebcb1a384..9eff4a03486b 100644
--- a/pkgs/applications/version-management/gita/default.nix
+++ b/pkgs/applications/version-management/gita/default.nix
@@ -9,6 +9,7 @@
 
 buildPythonApplication rec {
   version = "0.16.6.1";
+  format = "setuptools";
   pname = "gita";
 
   src = fetchFromGitHub {
diff --git a/pkgs/applications/video/jellyfin-mpv-shim/default.nix b/pkgs/applications/video/jellyfin-mpv-shim/default.nix
index 5fe8e8be2f25..a0a8743be688 100644
--- a/pkgs/applications/video/jellyfin-mpv-shim/default.nix
+++ b/pkgs/applications/video/jellyfin-mpv-shim/default.nix
@@ -20,6 +20,7 @@
 buildPythonApplication rec {
   pname = "jellyfin-mpv-shim";
   version = "2.9.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/applications/video/openshot-qt/default.nix b/pkgs/applications/video/openshot-qt/default.nix
index 605bebb857a6..94dfc75fb7ca 100644
--- a/pkgs/applications/video/openshot-qt/default.nix
+++ b/pkgs/applications/video/openshot-qt/default.nix
@@ -26,6 +26,7 @@ let
   };
 in
 mkDerivationWith python3.pkgs.buildPythonApplication {
+  format = "setuptools";
   inherit pname version src;
 
   outputs = [ "out" ]; # "lib" can't be split
diff --git a/pkgs/applications/video/plex-mpv-shim/default.nix b/pkgs/applications/video/plex-mpv-shim/default.nix
index 2dae6a3d221e..fc5d1b0ffbac 100644
--- a/pkgs/applications/video/plex-mpv-shim/default.nix
+++ b/pkgs/applications/video/plex-mpv-shim/default.nix
@@ -17,6 +17,7 @@
 buildPythonApplication rec {
   pname = "plex-mpv-shim";
   version = "1.11.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "iwalton3";
diff --git a/pkgs/applications/video/tartube/default.nix b/pkgs/applications/video/tartube/default.nix
index 98d1ee249f75..2d2538da0257 100644
--- a/pkgs/applications/video/tartube/default.nix
+++ b/pkgs/applications/video/tartube/default.nix
@@ -17,6 +17,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "tartube";
   version = "2.5.100";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "axcore";
diff --git a/pkgs/applications/window-managers/i3/altlayout.nix b/pkgs/applications/window-managers/i3/altlayout.nix
index ac793f0cf6b3..d72e313df00e 100644
--- a/pkgs/applications/window-managers/i3/altlayout.nix
+++ b/pkgs/applications/window-managers/i3/altlayout.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "i3altlayout";
   version = "0.3";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/applications/window-managers/i3/balance-workspace.nix b/pkgs/applications/window-managers/i3/balance-workspace.nix
index b89344613a84..9a3ef4a66d6c 100644
--- a/pkgs/applications/window-managers/i3/balance-workspace.nix
+++ b/pkgs/applications/window-managers/i3/balance-workspace.nix
@@ -8,6 +8,7 @@
 buildPythonPackage rec {
   pname = "i3-balance-workspace";
   version = "1.8.6";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/applications/window-managers/i3/i3-resurrect.nix b/pkgs/applications/window-managers/i3/i3-resurrect.nix
index 0fd06d1e34b7..4ed93f6c8866 100644
--- a/pkgs/applications/window-managers/i3/i3-resurrect.nix
+++ b/pkgs/applications/window-managers/i3/i3-resurrect.nix
@@ -14,6 +14,7 @@
 buildPythonApplication rec {
   pname = "i3-resurrect";
   version = "1.4.5";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/ac/accelergy/package.nix b/pkgs/by-name/ac/accelergy/package.nix
index 633355a901f2..40948cab7158 100644
--- a/pkgs/by-name/ac/accelergy/package.nix
+++ b/pkgs/by-name/ac/accelergy/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication {
   pname = "accelergy";
   version = "unstable-2022-05-03";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "Accelergy-Project";
diff --git a/pkgs/by-name/ad/adafruit-ampy/package.nix b/pkgs/by-name/ad/adafruit-ampy/package.nix
index 71b10e83f1d0..7c8ada704bc6 100644
--- a/pkgs/by-name/ad/adafruit-ampy/package.nix
+++ b/pkgs/by-name/ad/adafruit-ampy/package.nix
@@ -9,6 +9,7 @@ with python3.pkgs;
 buildPythonApplication rec {
   pname = "adafruit-ampy";
   version = "1.1.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/ad/addic7ed-cli/package.nix b/pkgs/by-name/ad/addic7ed-cli/package.nix
index c5dd68fd3d05..8ef9ab342c82 100644
--- a/pkgs/by-name/ad/addic7ed-cli/package.nix
+++ b/pkgs/by-name/ad/addic7ed-cli/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "addic7ed-cli";
   version = "1.4.6";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/al/almonds/package.nix b/pkgs/by-name/al/almonds/package.nix
index d8ec911b7304..fbc2d42b40ee 100644
--- a/pkgs/by-name/al/almonds/package.nix
+++ b/pkgs/by-name/al/almonds/package.nix
@@ -9,6 +9,7 @@ with python3.pkgs;
 buildPythonApplication rec {
   pname = "almonds";
   version = "1.25b";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "Tenchi2xh";
diff --git a/pkgs/by-name/am/amphetype/package.nix b/pkgs/by-name/am/amphetype/package.nix
index 6eebd8141dc5..2b0de7c9dd1e 100644
--- a/pkgs/by-name/am/amphetype/package.nix
+++ b/pkgs/by-name/am/amphetype/package.nix
@@ -13,6 +13,7 @@ let
   description = "Advanced typing practice program";
 in
 python3Packages.buildPythonApplication {
+  format = "setuptools";
   inherit pname version;
 
   src = fetchFromGitLab {
diff --git a/pkgs/by-name/an/anime-downloader/package.nix b/pkgs/by-name/an/anime-downloader/package.nix
index 4d8c2f932625..567ed0960cae 100644
--- a/pkgs/by-name/an/anime-downloader/package.nix
+++ b/pkgs/by-name/an/anime-downloader/package.nix
@@ -11,6 +11,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "anime-downloader";
   version = "5.0.14";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "anime-dl";
diff --git a/pkgs/by-name/an/antfs-cli/package.nix b/pkgs/by-name/an/antfs-cli/package.nix
index 921c65de58af..aa62577277d3 100644
--- a/pkgs/by-name/an/antfs-cli/package.nix
+++ b/pkgs/by-name/an/antfs-cli/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication {
   pname = "antfs-cli";
   version = "unstable-2017-02-11";
+  format = "setuptools";
 
   meta = with lib; {
     homepage = "https://github.com/Tigge/antfs-cli";
diff --git a/pkgs/by-name/ap/apache-airflow/python-package.nix b/pkgs/by-name/ap/apache-airflow/python-package.nix
index afe59b458122..b4f9f5bb0f71 100644
--- a/pkgs/by-name/ap/apache-airflow/python-package.nix
+++ b/pkgs/by-name/ap/apache-airflow/python-package.nix
@@ -147,6 +147,7 @@ in
 buildPythonPackage rec {
   pname = "apache-airflow";
   inherit version;
+  format = "setuptools";
   src = airflow-src;
 
   disabled = pythonOlder "3.7";
diff --git a/pkgs/by-name/ap/apksigcopier/package.nix b/pkgs/by-name/ap/apksigcopier/package.nix
index 693205e6e2a7..f2b5e0333c23 100644
--- a/pkgs/by-name/ap/apksigcopier/package.nix
+++ b/pkgs/by-name/ap/apksigcopier/package.nix
@@ -11,6 +11,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "apksigcopier";
   version = "1.1.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "obfusk";
diff --git a/pkgs/by-name/ap/apt-offline/package.nix b/pkgs/by-name/ap/apt-offline/package.nix
index f132c29b4c88..8d107e2e5dfb 100644
--- a/pkgs/by-name/ap/apt-offline/package.nix
+++ b/pkgs/by-name/ap/apt-offline/package.nix
@@ -18,6 +18,7 @@ let
   };
 in
 python3Packages.buildPythonApplication {
+  format = "setuptools";
   inherit pname version src;
 
   nativeBuildInputs = [ installShellFiles ];
diff --git a/pkgs/by-name/ar/arandr/package.nix b/pkgs/by-name/ar/arandr/package.nix
index 9a7b58a7b720..363816540a5b 100644
--- a/pkgs/by-name/ar/arandr/package.nix
+++ b/pkgs/by-name/ar/arandr/package.nix
@@ -16,6 +16,7 @@ in
 buildPythonApplication rec {
   pname = "arandr";
   version = "0.1.11";
+  format = "setuptools";
 
   src = fetchFromGitLab {
     owner = "arandr";
diff --git a/pkgs/by-name/ar/arxiv-latex-cleaner/package.nix b/pkgs/by-name/ar/arxiv-latex-cleaner/package.nix
index 88619edad297..b83f817089c0 100644
--- a/pkgs/by-name/ar/arxiv-latex-cleaner/package.nix
+++ b/pkgs/by-name/ar/arxiv-latex-cleaner/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "arxiv-latex-cleaner";
   version = "1.0.8";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "google-research";
diff --git a/pkgs/by-name/au/autokey/package.nix b/pkgs/by-name/au/autokey/package.nix
index 9e2b40106a22..e6014bd53164 100644
--- a/pkgs/by-name/au/autokey/package.nix
+++ b/pkgs/by-name/au/autokey/package.nix
@@ -14,6 +14,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "autokey";
   version = "0.96.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "autokey";
diff --git a/pkgs/by-name/aw/aws-shell/package.nix b/pkgs/by-name/aw/aws-shell/package.nix
index ed7646e6446c..dd12a68629ab 100644
--- a/pkgs/by-name/aw/aws-shell/package.nix
+++ b/pkgs/by-name/aw/aws-shell/package.nix
@@ -9,6 +9,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "aws-shell";
   version = "0.2.2";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "awslabs";
diff --git a/pkgs/by-name/aw/awscli2/package.nix b/pkgs/by-name/aw/awscli2/package.nix
index 763e992b5594..ded6b65d5f57 100644
--- a/pkgs/by-name/aw/awscli2/package.nix
+++ b/pkgs/by-name/aw/awscli2/package.nix
@@ -25,6 +25,7 @@ let
         });
         python-dateutil = prev.python-dateutil.overridePythonAttrs (prev: rec {
           version = "2.8.2";
+          format = "setuptools";
           pyproject = null;
           src = prev.src.override {
             inherit version;
diff --git a/pkgs/by-name/ay/ayatana-webmail/package.nix b/pkgs/by-name/ay/ayatana-webmail/package.nix
index 14665fb0e4e4..93871340e426 100644
--- a/pkgs/by-name/ay/ayatana-webmail/package.nix
+++ b/pkgs/by-name/ay/ayatana-webmail/package.nix
@@ -20,6 +20,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "ayatana-webmail";
   version = "24.5.17";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "AyatanaIndicators";
diff --git a/pkgs/by-name/az/azure-cli/package.nix b/pkgs/by-name/az/azure-cli/package.nix
index be490aa33876..9b4c1bbdacc7 100644
--- a/pkgs/by-name/az/azure-cli/package.nix
+++ b/pkgs/by-name/az/azure-cli/package.nix
@@ -142,6 +142,7 @@ py.pkgs.toPythonApplication (
   py.pkgs.buildAzureCliPackage rec {
     pname = "azure-cli";
     inherit version src;
+    format = "setuptools";
 
     sourceRoot = "${src.name}/src/azure-cli";
 
diff --git a/pkgs/by-name/az/azure-cli/python-packages.nix b/pkgs/by-name/az/azure-cli/python-packages.nix
index f7c64cc4b907..13ab4f80d910 100644
--- a/pkgs/by-name/az/azure-cli/python-packages.nix
+++ b/pkgs/by-name/az/azure-cli/python-packages.nix
@@ -28,6 +28,7 @@ let
       # core and the actual application are highly coupled
       azure-cli-core = buildAzureCliPackage {
         pname = "azure-cli-core";
+        format = "setuptools";
         inherit version src;
 
         sourceRoot = "${src.name}/src/azure-cli-core";
@@ -99,6 +100,7 @@ let
       azure-cli-telemetry = buildAzureCliPackage {
         pname = "azure-cli-telemetry";
         version = "1.1.0";
+        format = "setuptools";
         inherit src;
 
         sourceRoot = "${src.name}/src/azure-cli-telemetry";
diff --git a/pkgs/by-name/ba/base16-shell-preview/package.nix b/pkgs/by-name/ba/base16-shell-preview/package.nix
index dfc760d0e8c2..a376a364c1e4 100644
--- a/pkgs/by-name/ba/base16-shell-preview/package.nix
+++ b/pkgs/by-name/ba/base16-shell-preview/package.nix
@@ -10,6 +10,7 @@ let
 in
 python3Packages.buildPythonApplication {
   inherit pname version;
+  format = "setuptools";
 
   src = fetchPypi {
     inherit version;
diff --git a/pkgs/by-name/ba/bashplotlib/package.nix b/pkgs/by-name/ba/bashplotlib/package.nix
index 153e02d6d4a2..cd5bd62e703d 100644
--- a/pkgs/by-name/ba/bashplotlib/package.nix
+++ b/pkgs/by-name/ba/bashplotlib/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication {
   pname = "bashplotlib";
   version = "2021-03-31";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "glamp";
diff --git a/pkgs/by-name/bk/bkyml/package.nix b/pkgs/by-name/bk/bkyml/package.nix
index 01135cb94840..9f7dc8005bc3 100644
--- a/pkgs/by-name/bk/bkyml/package.nix
+++ b/pkgs/by-name/bk/bkyml/package.nix
@@ -9,6 +9,7 @@ with python3.pkgs;
 buildPythonApplication rec {
   pname = "bkyml";
   version = "1.4.3";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/bm/bmaptool/package.nix b/pkgs/by-name/bm/bmaptool/package.nix
index c97b13d26a38..dbdb003173d7 100644
--- a/pkgs/by-name/bm/bmaptool/package.nix
+++ b/pkgs/by-name/bm/bmaptool/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "bmaptool";
   version = "3.8.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "yoctoproject";
diff --git a/pkgs/by-name/bt/btlejack/package.nix b/pkgs/by-name/bt/btlejack/package.nix
index 50afe42db0b9..dd96ae1b641e 100644
--- a/pkgs/by-name/bt/btlejack/package.nix
+++ b/pkgs/by-name/bt/btlejack/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "btlejack";
   version = "2.1.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "virtualabs";
diff --git a/pkgs/by-name/bu/bubblemail/package.nix b/pkgs/by-name/bu/bubblemail/package.nix
index c33013ba7b8e..5ceb16b116b0 100644
--- a/pkgs/by-name/bu/bubblemail/package.nix
+++ b/pkgs/by-name/bu/bubblemail/package.nix
@@ -20,6 +20,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "bubblemail";
   version = "1.9";
+  format = "setuptools";
 
   src = fetchFromGitLab {
     domain = "framagit.org";
diff --git a/pkgs/by-name/bu/bumblebee-status/package.nix b/pkgs/by-name/bu/bumblebee-status/package.nix
index c847a8a8f313..83cca48c1a9b 100644
--- a/pkgs/by-name/bu/bumblebee-status/package.nix
+++ b/pkgs/by-name/bu/bumblebee-status/package.nix
@@ -22,6 +22,7 @@ in
 python3.pkgs.buildPythonPackage {
   pname = "bumblebee-status";
   inherit version;
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "tobi-wan-kenobi";
diff --git a/pkgs/by-name/bu/bumpver/package.nix b/pkgs/by-name/bu/bumpver/package.nix
index b28a533f19ca..41da92091a92 100644
--- a/pkgs/by-name/bu/bumpver/package.nix
+++ b/pkgs/by-name/bu/bumpver/package.nix
@@ -9,6 +9,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "bumpver";
   version = "2021.1110";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/ca/canto-curses/package.nix b/pkgs/by-name/ca/canto-curses/package.nix
index 69e02fac6472..e0a3d12cd011 100644
--- a/pkgs/by-name/ca/canto-curses/package.nix
+++ b/pkgs/by-name/ca/canto-curses/package.nix
@@ -10,6 +10,7 @@
 
 python3Packages.buildPythonApplication rec {
   version = "0.9.9";
+  format = "setuptools";
   pname = "canto-curses";
 
   src = fetchFromGitHub {
diff --git a/pkgs/by-name/ca/canto-daemon/package.nix b/pkgs/by-name/ca/canto-daemon/package.nix
index 1a26d98de253..bd6cedb2c64e 100644
--- a/pkgs/by-name/ca/canto-daemon/package.nix
+++ b/pkgs/by-name/ca/canto-daemon/package.nix
@@ -6,6 +6,7 @@
 
 python3Packages.buildPythonApplication rec {
   version = "0.9.8";
+  format = "setuptools";
   pname = "canto-daemon";
 
   src = fetchFromGitHub {
diff --git a/pkgs/by-name/ca/cantoolz/package.nix b/pkgs/by-name/ca/cantoolz/package.nix
index 7d2d8d9c8c83..8269a91eb982 100644
--- a/pkgs/by-name/ca/cantoolz/package.nix
+++ b/pkgs/by-name/ca/cantoolz/package.nix
@@ -8,6 +8,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "cantoolz";
   version = "3.7.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "CANToolz";
diff --git a/pkgs/by-name/ch/charge-lnd/package.nix b/pkgs/by-name/ch/charge-lnd/package.nix
index ba1b058ad1ba..33b3cb5d0f06 100644
--- a/pkgs/by-name/ch/charge-lnd/package.nix
+++ b/pkgs/by-name/ch/charge-lnd/package.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "charge-lnd";
   version = "0.3.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "accumulator";
diff --git a/pkgs/by-name/ch/chkcrontab/package.nix b/pkgs/by-name/ch/chkcrontab/package.nix
index f7aa1733c474..7c6101f94d2b 100644
--- a/pkgs/by-name/ch/chkcrontab/package.nix
+++ b/pkgs/by-name/ch/chkcrontab/package.nix
@@ -9,6 +9,7 @@ with python3.pkgs;
 buildPythonApplication rec {
   pname = "chkcrontab";
   version = "1.7";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/cl/clickable/package.nix b/pkgs/by-name/cl/clickable/package.nix
index cb59461ea4a1..1b10ec53dee3 100644
--- a/pkgs/by-name/cl/clickable/package.nix
+++ b/pkgs/by-name/cl/clickable/package.nix
@@ -9,6 +9,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "clickable";
   version = "8.3.1";
+  format = "setuptools";
 
   src = fetchFromGitLab {
     owner = "clickable";
diff --git a/pkgs/by-name/co/colorz/package.nix b/pkgs/by-name/co/colorz/package.nix
index 1c5b54014823..b93e88c76fde 100644
--- a/pkgs/by-name/co/colorz/package.nix
+++ b/pkgs/by-name/co/colorz/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "colorz";
   version = "1.0.3";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/co/compdb/package.nix b/pkgs/by-name/co/compdb/package.nix
index fb213a5d39e1..3fdb64236fc2 100644
--- a/pkgs/by-name/co/compdb/package.nix
+++ b/pkgs/by-name/co/compdb/package.nix
@@ -7,6 +7,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "compdb";
   version = "0.2.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "Sarcasm";
diff --git a/pkgs/by-name/cp/cp210x-program/package.nix b/pkgs/by-name/cp/cp210x-program/package.nix
index 36bd9eb1d503..3c61333b0c9a 100644
--- a/pkgs/by-name/cp/cp210x-program/package.nix
+++ b/pkgs/by-name/cp/cp210x-program/package.nix
@@ -7,6 +7,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "cp210x-program";
   version = "0.4.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "VCTLabs";
diff --git a/pkgs/by-name/cp/cppclean/package.nix b/pkgs/by-name/cp/cppclean/package.nix
index c260929b2d9e..7437e65a0848 100644
--- a/pkgs/by-name/cp/cppclean/package.nix
+++ b/pkgs/by-name/cp/cppclean/package.nix
@@ -9,6 +9,7 @@ with python3Packages;
 buildPythonApplication rec {
   pname = "cppclean";
   version = "0.13";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "myint";
diff --git a/pkgs/by-name/cp/cpuset/package.nix b/pkgs/by-name/cp/cpuset/package.nix
index f9af9b8893b6..1aa016a8f6df 100644
--- a/pkgs/by-name/cp/cpuset/package.nix
+++ b/pkgs/by-name/cp/cpuset/package.nix
@@ -7,6 +7,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "cpuset";
   version = "1.6.2";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "lpechacek";
diff --git a/pkgs/by-name/cr/crowbar/package.nix b/pkgs/by-name/cr/crowbar/package.nix
index 8f236ceb095e..ed2911bb5b66 100644
--- a/pkgs/by-name/cr/crowbar/package.nix
+++ b/pkgs/by-name/cr/crowbar/package.nix
@@ -11,6 +11,7 @@
 python3Packages.buildPythonApplication {
   pname = "crowbar";
   version = "unstable-2020-04-23";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "galkan";
diff --git a/pkgs/by-name/cs/csv2odf/package.nix b/pkgs/by-name/cs/csv2odf/package.nix
index b3f5c3017727..9119b697c30e 100644
--- a/pkgs/by-name/cs/csv2odf/package.nix
+++ b/pkgs/by-name/cs/csv2odf/package.nix
@@ -7,6 +7,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "csv2odf";
   version = "2.09";
+  format = "setuptools";
   src = fetchurl {
     url = "mirror://sourceforge/project/${pname}/${pname}-${version}/${pname}-${version}.tar.gz";
     sha256 = "09l0yfay89grjdzap2h11f0hcyn49np5zizg2yyp2aqgjs8ki57p";
diff --git a/pkgs/by-name/cu/cum/package.nix b/pkgs/by-name/cu/cum/package.nix
index 158ce2015da9..98e055250f79 100644
--- a/pkgs/by-name/cu/cum/package.nix
+++ b/pkgs/by-name/cu/cum/package.nix
@@ -9,6 +9,7 @@ with python3Packages;
 buildPythonApplication rec {
   pname = "cum";
   version = "0.9.1";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/cu/curseradio/package.nix b/pkgs/by-name/cu/curseradio/package.nix
index 37e2f6134188..8c97d7620dd0 100644
--- a/pkgs/by-name/cu/curseradio/package.nix
+++ b/pkgs/by-name/cu/curseradio/package.nix
@@ -8,6 +8,7 @@
 
 python3Packages.buildPythonApplication {
   version = "0.2";
+  format = "setuptools";
   pname = "curseradio";
 
   src = fetchFromGitHub {
diff --git a/pkgs/by-name/cu/cursewords/package.nix b/pkgs/by-name/cu/cursewords/package.nix
index f4f3d808cab3..e30b672901c9 100644
--- a/pkgs/by-name/cu/cursewords/package.nix
+++ b/pkgs/by-name/cu/cursewords/package.nix
@@ -6,6 +6,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "cursewords";
   version = "1.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "thisisparker";
diff --git a/pkgs/by-name/cv/cvehound/package.nix b/pkgs/by-name/cv/cvehound/package.nix
index 09d06f93091f..3103087c5c53 100644
--- a/pkgs/by-name/cv/cvehound/package.nix
+++ b/pkgs/by-name/cv/cvehound/package.nix
@@ -9,6 +9,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "cvehound";
   version = "1.2.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "evdenis";
diff --git a/pkgs/by-name/cv/cvs2svn/package.nix b/pkgs/by-name/cv/cvs2svn/package.nix
index c493c07d97bb..f489d028d225 100644
--- a/pkgs/by-name/cv/cvs2svn/package.nix
+++ b/pkgs/by-name/cv/cvs2svn/package.nix
@@ -13,6 +13,7 @@
 pypy2Packages.buildPythonApplication rec {
   pname = "cvs2svn";
   version = "2.5.0";
+  format = "setuptools";
 
   src = fetchurl {
     url = "https://github.com/mhagger/cvs2svn/releases/download/${version}/${pname}-${version}.tar.gz";
diff --git a/pkgs/by-name/de/devede/package.nix b/pkgs/by-name/de/devede/package.nix
index ff922648b855..f3cd5ecb2520 100644
--- a/pkgs/by-name/de/devede/package.nix
+++ b/pkgs/by-name/de/devede/package.nix
@@ -27,6 +27,7 @@ in
 buildPythonApplication rec {
   pname = "devede";
   version = "4.21.0";
+  format = "setuptools";
   namePrefix = "";
 
   src = fetchFromGitLab {
diff --git a/pkgs/by-name/df/dfmt/package.nix b/pkgs/by-name/df/dfmt/package.nix
index 7c858386e670..70b5e4d241cb 100644
--- a/pkgs/by-name/df/dfmt/package.nix
+++ b/pkgs/by-name/df/dfmt/package.nix
@@ -13,6 +13,7 @@ in
 buildPythonApplication rec {
   pname = "dfmt";
   version = "1.2.0";
+  format = "setuptools";
   disabled = pythonOlder "3.7";
 
   src = fetchPypi {
diff --git a/pkgs/by-name/di/diffoscope/package.nix b/pkgs/by-name/di/diffoscope/package.nix
index c93634d6ce1f..382a3fc8f7b1 100644
--- a/pkgs/by-name/di/diffoscope/package.nix
+++ b/pkgs/by-name/di/diffoscope/package.nix
@@ -107,6 +107,7 @@ in
 python.pkgs.buildPythonApplication rec {
   pname = "diffoscope";
   version = "300";
+  format = "setuptools";
 
   src = fetchurl {
     url = "https://diffoscope.org/archive/diffoscope-${version}.tar.bz2";
diff --git a/pkgs/by-name/dn/dnd-tools/package.nix b/pkgs/by-name/dn/dnd-tools/package.nix
index 3456807771e8..80aa0a9c5856 100644
--- a/pkgs/by-name/dn/dnd-tools/package.nix
+++ b/pkgs/by-name/dn/dnd-tools/package.nix
@@ -8,6 +8,7 @@
 python3.pkgs.buildPythonApplication {
   pname = "dnd-tools";
   version = "unstable-2021-02-18";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "savagezen";
diff --git a/pkgs/by-name/dn/dnsviz/package.nix b/pkgs/by-name/dn/dnsviz/package.nix
index bba786016014..81d3d42df88d 100644
--- a/pkgs/by-name/dn/dnsviz/package.nix
+++ b/pkgs/by-name/dn/dnsviz/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "dnsviz";
   version = "0.11.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "dnsviz";
diff --git a/pkgs/by-name/do/dockbarx/package.nix b/pkgs/by-name/do/dockbarx/package.nix
index 3b478a8606f7..19e56c3f4b10 100644
--- a/pkgs/by-name/do/dockbarx/package.nix
+++ b/pkgs/by-name/do/dockbarx/package.nix
@@ -13,6 +13,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "dockbarx";
   version = "1.0-beta4";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "xuzhen";
diff --git a/pkgs/by-name/do/dotfiles/package.nix b/pkgs/by-name/do/dotfiles/package.nix
index d901548326ba..9a4dda3a4952 100644
--- a/pkgs/by-name/do/dotfiles/package.nix
+++ b/pkgs/by-name/do/dotfiles/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "dotfiles";
   version = "0.6.5";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit version pname;
diff --git a/pkgs/by-name/dp/dpt-rp1-py/package.nix b/pkgs/by-name/dp/dpt-rp1-py/package.nix
index c33779161318..e8b0d2c255af 100644
--- a/pkgs/by-name/dp/dpt-rp1-py/package.nix
+++ b/pkgs/by-name/dp/dpt-rp1-py/package.nix
@@ -6,6 +6,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "dpt-rp1-py";
   version = "0.1.16";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "janten";
diff --git a/pkgs/by-name/dr/dr14_tmeter/package.nix b/pkgs/by-name/dr/dr14_tmeter/package.nix
index fe141c096fb1..5ad65034eff0 100644
--- a/pkgs/by-name/dr/dr14_tmeter/package.nix
+++ b/pkgs/by-name/dr/dr14_tmeter/package.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "dr14_tmeter";
   version = "1.0.16";
+  format = "setuptools";
 
   disabled = !python3Packages.isPy3k;
 
diff --git a/pkgs/by-name/dt/dtrx/package.nix b/pkgs/by-name/dt/dtrx/package.nix
index 837f434fb981..7315e382ea32 100644
--- a/pkgs/by-name/dt/dtrx/package.nix
+++ b/pkgs/by-name/dt/dtrx/package.nix
@@ -24,6 +24,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "dtrx";
   version = "8.5.3";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "dtrx-py";
diff --git a/pkgs/by-name/du/duplicity/package.nix b/pkgs/by-name/du/duplicity/package.nix
index 3b3289706ebe..9a6f9352379d 100644
--- a/pkgs/by-name/du/duplicity/package.nix
+++ b/pkgs/by-name/du/duplicity/package.nix
@@ -23,6 +23,7 @@ let
   self = python3.pkgs.buildPythonApplication rec {
     pname = "duplicity";
     version = "3.0.5.1";
+    format = "setuptools";
 
     src = fetchFromGitLab {
       owner = "duplicity";
diff --git a/pkgs/by-name/ea/easyeda2kicad/package.nix b/pkgs/by-name/ea/easyeda2kicad/package.nix
index 9cfbe3b116cc..db16be875449 100644
--- a/pkgs/by-name/ea/easyeda2kicad/package.nix
+++ b/pkgs/by-name/ea/easyeda2kicad/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonPackage rec {
   pname = "easyeda2kicad";
   version = "0.8.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/ed/eddy/package.nix b/pkgs/by-name/ed/eddy/package.nix
index 5c41a460c099..857c321f8075 100644
--- a/pkgs/by-name/ed/eddy/package.nix
+++ b/pkgs/by-name/ed/eddy/package.nix
@@ -9,6 +9,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "eddy";
   version = "3.7";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "obdasystems";
diff --git a/pkgs/by-name/ed/edl/package.nix b/pkgs/by-name/ed/edl/package.nix
index 3f5df7968f2f..bc48ce108c4c 100644
--- a/pkgs/by-name/ed/edl/package.nix
+++ b/pkgs/by-name/ed/edl/package.nix
@@ -9,6 +9,7 @@
 python3Packages.buildPythonPackage {
   pname = "edl";
   version = "3.52.1-unstable-2025-06-08";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "bkerler";
diff --git a/pkgs/by-name/eg/eggnog-mapper/package.nix b/pkgs/by-name/eg/eggnog-mapper/package.nix
index e4e1e9695f89..7b5e2cd464d7 100644
--- a/pkgs/by-name/eg/eggnog-mapper/package.nix
+++ b/pkgs/by-name/eg/eggnog-mapper/package.nix
@@ -10,6 +10,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "eggnog-mapper";
   version = "2.1.12";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "eggnogdb";
diff --git a/pkgs/by-name/en/endgame-singularity/package.nix b/pkgs/by-name/en/endgame-singularity/package.nix
index 94be17b6d783..4736be067c4d 100644
--- a/pkgs/by-name/en/endgame-singularity/package.nix
+++ b/pkgs/by-name/en/endgame-singularity/package.nix
@@ -25,6 +25,7 @@ let
 in
 
 python3.pkgs.buildPythonApplication {
+  format = "setuptools";
   inherit pname version;
 
   srcs = [ main_src ] ++ lib.optional enableDefaultMusicPack music_src;
diff --git a/pkgs/by-name/ep/epr/package.nix b/pkgs/by-name/ep/epr/package.nix
index a59abf2b28dd..4169920893a2 100644
--- a/pkgs/by-name/ep/epr/package.nix
+++ b/pkgs/by-name/ep/epr/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "epr";
   version = "2.4.13";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "wustho";
diff --git a/pkgs/by-name/es/escrotum/package.nix b/pkgs/by-name/es/escrotum/package.nix
index 6d4f80521596..306fe110ee5a 100644
--- a/pkgs/by-name/es/escrotum/package.nix
+++ b/pkgs/by-name/es/escrotum/package.nix
@@ -13,6 +13,7 @@ with python3Packages;
 buildPythonApplication {
   pname = "escrotum";
   version = "unstable-2020-12-07";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "Roger";
diff --git a/pkgs/by-name/et/etebase-server/package.nix b/pkgs/by-name/et/etebase-server/package.nix
index e4d8cf1c36a5..f374336d0ec6 100644
--- a/pkgs/by-name/et/etebase-server/package.nix
+++ b/pkgs/by-name/et/etebase-server/package.nix
@@ -11,6 +11,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "etebase-server";
   version = "0.14.2";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "etesync";
diff --git a/pkgs/by-name/et/etesync-dav/package.nix b/pkgs/by-name/et/etesync-dav/package.nix
index ea44a675021a..6c9edf44299c 100644
--- a/pkgs/by-name/et/etesync-dav/package.nix
+++ b/pkgs/by-name/et/etesync-dav/package.nix
@@ -9,6 +9,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "etesync-dav";
   version = "0.34.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "etesync";
diff --git a/pkgs/by-name/ev/evdevremapkeys/package.nix b/pkgs/by-name/ev/evdevremapkeys/package.nix
index a99abc407e0d..f1cde58569b6 100644
--- a/pkgs/by-name/ev/evdevremapkeys/package.nix
+++ b/pkgs/by-name/ev/evdevremapkeys/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonPackage {
   pname = "evdevremapkeys";
   version = "unstable-2021-05-04";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "philipl";
diff --git a/pkgs/by-name/ex/expliot/package.nix b/pkgs/by-name/ex/expliot/package.nix
index d4496c28d1e8..68ff6ea92f53 100644
--- a/pkgs/by-name/ex/expliot/package.nix
+++ b/pkgs/by-name/ex/expliot/package.nix
@@ -24,6 +24,7 @@ with py.pkgs;
 buildPythonApplication rec {
   pname = "expliot";
   version = "0.9.8";
+  format = "setuptools";
 
   src = fetchFromGitLab {
     owner = "expliot_framework";
diff --git a/pkgs/by-name/fa/fail2ban/package.nix b/pkgs/by-name/fa/fail2ban/package.nix
index 720ff17dac1a..7038122ab0d6 100644
--- a/pkgs/by-name/fa/fail2ban/package.nix
+++ b/pkgs/by-name/fa/fail2ban/package.nix
@@ -11,6 +11,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "fail2ban";
   version = "1.1.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "fail2ban";
diff --git a/pkgs/by-name/fa/fastcov/package.nix b/pkgs/by-name/fa/fastcov/package.nix
index 861199298db3..4e3439da9ae8 100644
--- a/pkgs/by-name/fa/fastcov/package.nix
+++ b/pkgs/by-name/fa/fastcov/package.nix
@@ -10,6 +10,7 @@
 python3Packages.buildPythonPackage rec {
   pname = "fastcov";
   version = "1.16";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "RPGillespie6";
diff --git a/pkgs/by-name/ff/ffmpeg-normalize/package.nix b/pkgs/by-name/ff/ffmpeg-normalize/package.nix
index 4ffaeca2b432..0f7810b22a53 100644
--- a/pkgs/by-name/ff/ffmpeg-normalize/package.nix
+++ b/pkgs/by-name/ff/ffmpeg-normalize/package.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "ffmpeg-normalize";
   version = "1.31.3";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit version;
diff --git a/pkgs/by-name/fi/fileinfo/package.nix b/pkgs/by-name/fi/fileinfo/package.nix
index c0dbafd2b00f..41bea4d85656 100644
--- a/pkgs/by-name/fi/fileinfo/package.nix
+++ b/pkgs/by-name/fi/fileinfo/package.nix
@@ -6,6 +6,7 @@
 python3Packages.buildPythonApplication {
   pname = "fileinfo";
   version = "unstable-2022-09-16";
+  format = "setuptools";
   src = fetchFromGitHub {
     owner = "sdushantha";
     repo = "fileinfo";
diff --git a/pkgs/by-name/fl/flac2all/package.nix b/pkgs/by-name/fl/flac2all/package.nix
index fb9a420a1aa5..5e8783941393 100644
--- a/pkgs/by-name/fl/flac2all/package.nix
+++ b/pkgs/by-name/fl/flac2all/package.nix
@@ -12,6 +12,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "flac2all";
   version = "5.1";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/fl/flattenReferencesGraph/package.nix b/pkgs/by-name/fl/flattenReferencesGraph/package.nix
index c3c7edb17609..c5b8fbafcd68 100644
--- a/pkgs/by-name/fl/flattenReferencesGraph/package.nix
+++ b/pkgs/by-name/fl/flattenReferencesGraph/package.nix
@@ -10,6 +10,7 @@ let
 in
 pythonPackages.buildPythonApplication {
   version = "0.1.0";
+  format = "setuptools";
   pname = "flatten-references-graph";
 
   # Note: this uses only ./src/.gitignore
diff --git a/pkgs/by-name/fl/flawfinder/package.nix b/pkgs/by-name/fl/flawfinder/package.nix
index acd4809a5aad..41d235b269bd 100644
--- a/pkgs/by-name/fl/flawfinder/package.nix
+++ b/pkgs/by-name/fl/flawfinder/package.nix
@@ -7,6 +7,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "flawfinder";
   version = "2.0.19";
+  format = "setuptools";
 
   src = fetchurl {
     url = "https://dwheeler.com/flawfinder/flawfinder-${version}.tar.gz";
diff --git a/pkgs/by-name/fl/flent/package.nix b/pkgs/by-name/fl/flent/package.nix
index 9157d4cf28ba..31c9f6196b3c 100644
--- a/pkgs/by-name/fl/flent/package.nix
+++ b/pkgs/by-name/fl/flent/package.nix
@@ -9,6 +9,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "flent";
   version = "2.2.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/fl/flootty/package.nix b/pkgs/by-name/fl/flootty/package.nix
index 085de1832164..dc3c7619261a 100644
--- a/pkgs/by-name/fl/flootty/package.nix
+++ b/pkgs/by-name/fl/flootty/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "Flootty";
   version = "3.2.2";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/fl/fluxboxlauncher/package.nix b/pkgs/by-name/fl/fluxboxlauncher/package.nix
index b02e645a3829..1465b094e667 100644
--- a/pkgs/by-name/fl/fluxboxlauncher/package.nix
+++ b/pkgs/by-name/fl/fluxboxlauncher/package.nix
@@ -16,6 +16,7 @@
 python3.pkgs.buildPythonApplication {
   pname = "fluxboxlauncher";
   version = "0.2.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "mothsart";
diff --git a/pkgs/by-name/fp/fprettify/package.nix b/pkgs/by-name/fp/fprettify/package.nix
index fe9925299d02..0433d9294f39 100644
--- a/pkgs/by-name/fp/fprettify/package.nix
+++ b/pkgs/by-name/fp/fprettify/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "fprettify";
   version = "0.3.7";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "pseewald";
diff --git a/pkgs/by-name/fr/frescobaldi/package.nix b/pkgs/by-name/fr/frescobaldi/package.nix
index 3de32e28a752..ae9d3be7ef76 100644
--- a/pkgs/by-name/fr/frescobaldi/package.nix
+++ b/pkgs/by-name/fr/frescobaldi/package.nix
@@ -9,6 +9,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "frescobaldi";
   version = "3.3.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "wbsoft";
diff --git a/pkgs/by-name/fr/frida-tools/package.nix b/pkgs/by-name/fr/frida-tools/package.nix
index 2da662c10eee..d7325fda5188 100644
--- a/pkgs/by-name/fr/frida-tools/package.nix
+++ b/pkgs/by-name/fr/frida-tools/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "frida-tools";
   version = "14.1.2";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/gd/gdtoolkit_3/package.nix b/pkgs/by-name/gd/gdtoolkit_3/package.nix
index 8469a1a647d7..db3d0dee96df 100644
--- a/pkgs/by-name/gd/gdtoolkit_3/package.nix
+++ b/pkgs/by-name/gd/gdtoolkit_3/package.nix
@@ -28,6 +28,7 @@ in
 python.pkgs.buildPythonApplication rec {
   pname = "gdtoolkit3";
   version = "3.5.0";
+  format = "setuptools";
 
   # If we try to get using fetchPypi it requires GeoIP (but the package dont has that dep!?)
   src = fetchFromGitHub {
diff --git a/pkgs/by-name/gd/gdtoolkit_4/package.nix b/pkgs/by-name/gd/gdtoolkit_4/package.nix
index 2c44701b0a67..29a5b02b8825 100644
--- a/pkgs/by-name/gd/gdtoolkit_4/package.nix
+++ b/pkgs/by-name/gd/gdtoolkit_4/package.nix
@@ -28,6 +28,7 @@ in
 python.pkgs.buildPythonApplication rec {
   pname = "gdtoolkit";
   version = "4.3.3";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "Scony";
diff --git a/pkgs/by-name/ge/genxword/package.nix b/pkgs/by-name/ge/genxword/package.nix
index c1b318889322..c16affd8aa22 100644
--- a/pkgs/by-name/ge/genxword/package.nix
+++ b/pkgs/by-name/ge/genxword/package.nix
@@ -12,6 +12,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "genxword";
   version = "2.1.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "riverrun";
diff --git a/pkgs/by-name/ge/gersemi/package.nix b/pkgs/by-name/ge/gersemi/package.nix
index 305d430a323c..e17fe104e49e 100644
--- a/pkgs/by-name/ge/gersemi/package.nix
+++ b/pkgs/by-name/ge/gersemi/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "gersemi";
   version = "0.19.3";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "BlankSpruce";
diff --git a/pkgs/by-name/gh/gh2md/package.nix b/pkgs/by-name/gh/gh2md/package.nix
index 87b8648bc5a7..648a47731d08 100644
--- a/pkgs/by-name/gh/gh2md/package.nix
+++ b/pkgs/by-name/gh/gh2md/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "gh2md";
   version = "2.3.1";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/gh/ghost/package.nix b/pkgs/by-name/gh/ghost/package.nix
index 9750eb5f94a1..3a771183511e 100644
--- a/pkgs/by-name/gh/ghost/package.nix
+++ b/pkgs/by-name/gh/ghost/package.nix
@@ -7,6 +7,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "ghost";
   version = "8.0.0";
+  format = "setuptools";
 
   disabled = python3.pythonOlder "3.7";
 
diff --git a/pkgs/by-name/gi/git-aggregator/package.nix b/pkgs/by-name/gi/git-aggregator/package.nix
index 39cbf1e3cc01..3e6f7c93e37d 100644
--- a/pkgs/by-name/gi/git-aggregator/package.nix
+++ b/pkgs/by-name/gi/git-aggregator/package.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "git-aggregator";
   version = "4.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "acsone";
diff --git a/pkgs/by-name/gi/git-bars/package.nix b/pkgs/by-name/gi/git-bars/package.nix
index 31dd185e2ca7..31301863d603 100644
--- a/pkgs/by-name/gi/git-bars/package.nix
+++ b/pkgs/by-name/gi/git-bars/package.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication {
   pname = "git-bars";
   version = "unstable-2023-08-08";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "knadh";
diff --git a/pkgs/by-name/gi/git-branchstack/package.nix b/pkgs/by-name/gi/git-branchstack/package.nix
index e7f2d24b21bf..5df2b45409cd 100644
--- a/pkgs/by-name/gi/git-branchstack/package.nix
+++ b/pkgs/by-name/gi/git-branchstack/package.nix
@@ -8,6 +8,7 @@ let
   self = python3Packages.buildPythonApplication {
     pname = "git-branchstack";
     version = "0.2.0";
+    format = "setuptools";
 
     src = fetchPypi {
       pname = "git-branchstack";
diff --git a/pkgs/by-name/gi/git-crecord/package.nix b/pkgs/by-name/gi/git-crecord/package.nix
index 359d8b6675c1..8ca27f22df10 100644
--- a/pkgs/by-name/gi/git-crecord/package.nix
+++ b/pkgs/by-name/gi/git-crecord/package.nix
@@ -7,6 +7,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "git-crecord";
   version = "20230226.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "andrewshadura";
diff --git a/pkgs/by-name/gi/git-machete/package.nix b/pkgs/by-name/gi/git-machete/package.nix
index 325a3975344a..e48473843ddc 100644
--- a/pkgs/by-name/gi/git-machete/package.nix
+++ b/pkgs/by-name/gi/git-machete/package.nix
@@ -10,6 +10,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "git-machete";
   version = "3.36.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "virtuslab";
diff --git a/pkgs/by-name/gi/git-relevant-history/package.nix b/pkgs/by-name/gi/git-relevant-history/package.nix
index 4b3ed1a3e403..19e2fd92b140 100644
--- a/pkgs/by-name/gi/git-relevant-history/package.nix
+++ b/pkgs/by-name/gi/git-relevant-history/package.nix
@@ -9,6 +9,7 @@
 python3.pkgs.buildPythonApplication {
   pname = "git-relevant-history";
   version = "2022-09-15";
+  format = "setuptools";
   src = fetchFromGitHub {
     owner = "rainlabs-eu";
     repo = "git-relevant-history";
diff --git a/pkgs/by-name/gi/git-remote-codecommit/package.nix b/pkgs/by-name/gi/git-remote-codecommit/package.nix
index 210607e6f151..038475eb87d6 100644
--- a/pkgs/by-name/gi/git-remote-codecommit/package.nix
+++ b/pkgs/by-name/gi/git-remote-codecommit/package.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "git-remote-codecommit";
   version = "1.17";
+  format = "setuptools";
   disabled = !python3Packages.isPy3k;
 
   # The check dependency awscli has some overrides
diff --git a/pkgs/by-name/gi/git-remote-hg/package.nix b/pkgs/by-name/gi/git-remote-hg/package.nix
index bca9987b62b4..2c480a162d7c 100644
--- a/pkgs/by-name/gi/git-remote-hg/package.nix
+++ b/pkgs/by-name/gi/git-remote-hg/package.nix
@@ -13,6 +13,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "git-remote-hg";
   version = "1.0.4";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "mnauw";
diff --git a/pkgs/by-name/gi/gitfs/package.nix b/pkgs/by-name/gi/gitfs/package.nix
index 94c4b3868edd..97053ad85034 100644
--- a/pkgs/by-name/gi/gitfs/package.nix
+++ b/pkgs/by-name/gi/gitfs/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "gitfs";
   version = "0.5.2";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "PressLabs";
diff --git a/pkgs/by-name/gl/gladtex/package.nix b/pkgs/by-name/gl/gladtex/package.nix
index a07d744ab557..e1c778ee3990 100644
--- a/pkgs/by-name/gl/gladtex/package.nix
+++ b/pkgs/by-name/gl/gladtex/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonPackage {
   pname = "gladtex";
   version = "unstable-2023-01-22";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "humenda";
diff --git a/pkgs/by-name/gn/gnome-keysign/package.nix b/pkgs/by-name/gn/gnome-keysign/package.nix
index e3cf67e2ce1b..b7422d9ee7db 100644
--- a/pkgs/by-name/gn/gnome-keysign/package.nix
+++ b/pkgs/by-name/gn/gnome-keysign/package.nix
@@ -12,6 +12,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "gnome-keysign";
   version = "1.3.0";
+  format = "setuptools";
 
   src = fetchFromGitLab {
     domain = "gitlab.gnome.org";
diff --git a/pkgs/by-name/gn/gnomecast/package.nix b/pkgs/by-name/gn/gnomecast/package.nix
index f3ed3e441d14..9e3dfc81f715 100644
--- a/pkgs/by-name/gn/gnomecast/package.nix
+++ b/pkgs/by-name/gn/gnomecast/package.nix
@@ -13,6 +13,7 @@ with python3Packages;
 buildPythonApplication {
   pname = "gnomecast";
   version = "unstable-2022-04-23";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "keredson";
diff --git a/pkgs/by-name/go/gomp/package.nix b/pkgs/by-name/go/gomp/package.nix
index ee9b5ce7eb0c..6a91b600e35b 100644
--- a/pkgs/by-name/go/gomp/package.nix
+++ b/pkgs/by-name/go/gomp/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "gomp";
   version = "1.1.1";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/gr/grabserial/package.nix b/pkgs/by-name/gr/grabserial/package.nix
index 5bca0b56c3df..d95ca513b5ec 100644
--- a/pkgs/by-name/gr/grabserial/package.nix
+++ b/pkgs/by-name/gr/grabserial/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "grabserial";
   version = "2.1.8";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "tbird20d";
diff --git a/pkgs/by-name/gr/graph-cli/package.nix b/pkgs/by-name/gr/graph-cli/package.nix
index e7f722b59052..b819722d5fac 100644
--- a/pkgs/by-name/gr/graph-cli/package.nix
+++ b/pkgs/by-name/gr/graph-cli/package.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "graph-cli";
   version = "0.1.19";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit version;
diff --git a/pkgs/by-name/gs/gscreenshot/package.nix b/pkgs/by-name/gs/gscreenshot/package.nix
index eeab1ef85b33..abc1ac904e64 100644
--- a/pkgs/by-name/gs/gscreenshot/package.nix
+++ b/pkgs/by-name/gs/gscreenshot/package.nix
@@ -20,6 +20,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "gscreenshot";
   version = "3.9.2";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "thenaterhood";
diff --git a/pkgs/by-name/gs/gshogi/package.nix b/pkgs/by-name/gs/gshogi/package.nix
index 3fdd60a5fa2c..c015b3c92c05 100644
--- a/pkgs/by-name/gs/gshogi/package.nix
+++ b/pkgs/by-name/gs/gshogi/package.nix
@@ -10,6 +10,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "gshogi";
   version = "0.5.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "johncheetham";
diff --git a/pkgs/by-name/gs/gspeech/package.nix b/pkgs/by-name/gs/gspeech/package.nix
index 8dcc9c6c52f1..c49fe985ee95 100644
--- a/pkgs/by-name/gs/gspeech/package.nix
+++ b/pkgs/by-name/gs/gspeech/package.nix
@@ -22,6 +22,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "gSpeech";
   version = "0.11.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "mothsart";
diff --git a/pkgs/by-name/ha/hashid/package.nix b/pkgs/by-name/ha/hashid/package.nix
index 986e694a884c..15e015dd6589 100644
--- a/pkgs/by-name/ha/hashid/package.nix
+++ b/pkgs/by-name/ha/hashid/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication {
   pname = "hashid";
   version = "3.1.4-unstable-2015-03-17";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "psypanda";
diff --git a/pkgs/by-name/ha/haxor-news/package.nix b/pkgs/by-name/ha/haxor-news/package.nix
index 59bda97d4422..c0923839d41b 100644
--- a/pkgs/by-name/ha/haxor-news/package.nix
+++ b/pkgs/by-name/ha/haxor-news/package.nix
@@ -36,6 +36,7 @@ with py.pkgs;
 buildPythonApplication rec {
   pname = "haxor-news";
   version = "unstable-2020-10-20";
+  format = "setuptools";
 
   # haven't done a stable release in 3+ years, but actively developed
   src = fetchFromGitHub {
diff --git a/pkgs/by-name/he/heisenbridge/package.nix b/pkgs/by-name/he/heisenbridge/package.nix
index a09a606715d2..0015cc014bab 100644
--- a/pkgs/by-name/he/heisenbridge/package.nix
+++ b/pkgs/by-name/he/heisenbridge/package.nix
@@ -8,6 +8,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "heisenbridge";
   version = "1.15.3";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "hifi";
diff --git a/pkgs/by-name/hi/hifiscan/package.nix b/pkgs/by-name/hi/hifiscan/package.nix
index 3f8ad858d683..fde68ab74971 100644
--- a/pkgs/by-name/hi/hifiscan/package.nix
+++ b/pkgs/by-name/hi/hifiscan/package.nix
@@ -9,6 +9,7 @@ let
   hash = "sha256-8eystqjNdDP2X9beogRcsa+Wqu50uMHZv59jdc5GjUc=";
 in
 python3Packages.buildPythonApplication {
+  format = "setuptools";
   inherit pname version;
 
   pythonPath = with python3Packages; [
diff --git a/pkgs/by-name/ht/htgettoken/package.nix b/pkgs/by-name/ht/htgettoken/package.nix
index 8023cc26df62..a6c85e96d393 100644
--- a/pkgs/by-name/ht/htgettoken/package.nix
+++ b/pkgs/by-name/ht/htgettoken/package.nix
@@ -8,6 +8,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "htgettoken";
   version = "2.2-2";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "fermitools";
diff --git a/pkgs/by-name/ht/httpstat/package.nix b/pkgs/by-name/ht/httpstat/package.nix
index bc777c3e9bf5..c80eeeb9e8ea 100644
--- a/pkgs/by-name/ht/httpstat/package.nix
+++ b/pkgs/by-name/ht/httpstat/package.nix
@@ -9,6 +9,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "httpstat";
   version = "1.3.1";
+  format = "setuptools";
   src = fetchFromGitHub {
     owner = "reorx";
     repo = "httpstat";
diff --git a/pkgs/by-name/hy/hyp/package.nix b/pkgs/by-name/hy/hyp/package.nix
index dae4619da82f..e084aba76528 100644
--- a/pkgs/by-name/hy/hyp/package.nix
+++ b/pkgs/by-name/hy/hyp/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonPackage rec {
   pname = "hyp-server";
   version = "1.2.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/i3/i3a/package.nix b/pkgs/by-name/i3/i3a/package.nix
index 578b109a2508..0ad7b8608219 100644
--- a/pkgs/by-name/i3/i3a/package.nix
+++ b/pkgs/by-name/i3/i3a/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "i3a";
   version = "2.1.1";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/i3/i3minator/package.nix b/pkgs/by-name/i3/i3minator/package.nix
index 1fc08fabd4ae..2d90a8c5d361 100644
--- a/pkgs/by-name/i3/i3minator/package.nix
+++ b/pkgs/by-name/i3/i3minator/package.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "i3minator";
   version = "0.0.4";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "carlesso";
diff --git a/pkgs/by-name/ib/ibus-theme-tools/package.nix b/pkgs/by-name/ib/ibus-theme-tools/package.nix
index 414f5d134c2c..cf2f06ab9c78 100644
--- a/pkgs/by-name/ib/ibus-theme-tools/package.nix
+++ b/pkgs/by-name/ib/ibus-theme-tools/package.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "ibus-theme-tools";
   version = "4.2.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "openSUSE";
diff --git a/pkgs/by-name/im/imgp/package.nix b/pkgs/by-name/im/imgp/package.nix
index 958963cc8766..57d32eab2230 100644
--- a/pkgs/by-name/im/imgp/package.nix
+++ b/pkgs/by-name/im/imgp/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "imgp";
   version = "2.9";
+  format = "setuptools";
   disabled = python3Packages.pythonOlder "3.8";
 
   src = fetchFromGitHub {
diff --git a/pkgs/by-name/in/indicator-sound-switcher/package.nix b/pkgs/by-name/in/indicator-sound-switcher/package.nix
index 2d6b8921eb07..cd5cce7f9f36 100644
--- a/pkgs/by-name/in/indicator-sound-switcher/package.nix
+++ b/pkgs/by-name/in/indicator-sound-switcher/package.nix
@@ -18,6 +18,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "indicator-sound-switcher";
   version = "2.3.10.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "yktoo";
diff --git a/pkgs/by-name/in/inkcut/package.nix b/pkgs/by-name/in/inkcut/package.nix
index 1d0ba86ab8e3..6c4dee376f72 100644
--- a/pkgs/by-name/in/inkcut/package.nix
+++ b/pkgs/by-name/in/inkcut/package.nix
@@ -10,6 +10,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "inkcut";
   version = "2.1.6";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "inkcut";
diff --git a/pkgs/by-name/in/inql/package.nix b/pkgs/by-name/in/inql/package.nix
index 3da2eb9991b0..4d4013dfbad5 100644
--- a/pkgs/by-name/in/inql/package.nix
+++ b/pkgs/by-name/in/inql/package.nix
@@ -7,6 +7,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "inql";
   version = "4.0.6";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "doyensec";
diff --git a/pkgs/by-name/io/iotop/package.nix b/pkgs/by-name/io/iotop/package.nix
index 6f420219118e..d147f6df7f3a 100644
--- a/pkgs/by-name/io/iotop/package.nix
+++ b/pkgs/by-name/io/iotop/package.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "iotop";
   version = "0.6";
+  format = "setuptools";
 
   src = fetchurl {
     url = "http://guichaz.free.fr/iotop/files/iotop-${version}.tar.bz2";
diff --git a/pkgs/by-name/ip/ipgrep/package.nix b/pkgs/by-name/ip/ipgrep/package.nix
index e91ad3a99b97..ede71394e81c 100644
--- a/pkgs/by-name/ip/ipgrep/package.nix
+++ b/pkgs/by-name/ip/ipgrep/package.nix
@@ -6,6 +6,7 @@
 
 python3Packages.buildPythonApplication rec {
   version = "1.0.1";
+  format = "setuptools";
   pname = "ipgrep";
 
   disabled = python3Packages.isPy27;
diff --git a/pkgs/by-name/is/isolyzer/package.nix b/pkgs/by-name/is/isolyzer/package.nix
index b1a1edf6ffaa..e5413bd2dc80 100644
--- a/pkgs/by-name/is/isolyzer/package.nix
+++ b/pkgs/by-name/is/isolyzer/package.nix
@@ -7,6 +7,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "isolyzer";
   version = "1.4.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "KBNLresearch";
diff --git a/pkgs/by-name/is/isrcsubmit/package.nix b/pkgs/by-name/is/isrcsubmit/package.nix
index f22aa5f4f5d8..1d3edf20e4e3 100644
--- a/pkgs/by-name/is/isrcsubmit/package.nix
+++ b/pkgs/by-name/is/isrcsubmit/package.nix
@@ -9,6 +9,7 @@
 python3Packages.buildPythonApplication {
   pname = "isrcsubmit";
   version = "2.1.0-unstable-2023-08-10";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "JonnyJD";
diff --git a/pkgs/by-name/je/jelly/package.nix b/pkgs/by-name/je/jelly/package.nix
index 4e8f5c096065..0f71bbb3d5b0 100644
--- a/pkgs/by-name/je/jelly/package.nix
+++ b/pkgs/by-name/je/jelly/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication {
   pname = "jelly";
   version = "0.1.31";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "DennisMitchell";
diff --git a/pkgs/by-name/ji/jiten/package.nix b/pkgs/by-name/ji/jiten/package.nix
index 7b3cb786071a..54aa702adae2 100644
--- a/pkgs/by-name/ji/jiten/package.nix
+++ b/pkgs/by-name/ji/jiten/package.nix
@@ -14,6 +14,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "jiten";
   version = "1.1.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "obfusk";
diff --git a/pkgs/by-name/jn/jnitrace/package.nix b/pkgs/by-name/jn/jnitrace/package.nix
index 52d31747dbf3..b6ad48bbda79 100644
--- a/pkgs/by-name/jn/jnitrace/package.nix
+++ b/pkgs/by-name/jn/jnitrace/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "jnitrace";
   version = "3.3.1";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/jo/joystickwake/package.nix b/pkgs/by-name/jo/joystickwake/package.nix
index da51d233a279..16aa51877aee 100644
--- a/pkgs/by-name/jo/joystickwake/package.nix
+++ b/pkgs/by-name/jo/joystickwake/package.nix
@@ -6,6 +6,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "joystickwake";
   version = "0.4.2";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "foresto";
diff --git a/pkgs/by-name/ka/kanjidraw/package.nix b/pkgs/by-name/ka/kanjidraw/package.nix
index 14a90b18723b..584506e6a19e 100644
--- a/pkgs/by-name/ka/kanjidraw/package.nix
+++ b/pkgs/by-name/ka/kanjidraw/package.nix
@@ -8,6 +8,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "kanjidraw";
   version = "0.2.3";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "obfusk";
diff --git a/pkgs/by-name/ka/kas/package.nix b/pkgs/by-name/ka/kas/package.nix
index 4e9ffd436471..8deec4a0ff8b 100644
--- a/pkgs/by-name/ka/kas/package.nix
+++ b/pkgs/by-name/ka/kas/package.nix
@@ -9,6 +9,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "kas";
   version = "4.7";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "siemens";
diff --git a/pkgs/by-name/ka/kazam/package.nix b/pkgs/by-name/ka/kazam/package.nix
index f838e3d6a409..194c39890cfa 100644
--- a/pkgs/by-name/ka/kazam/package.nix
+++ b/pkgs/by-name/ka/kazam/package.nix
@@ -19,6 +19,7 @@
 python3Packages.buildPythonApplication {
   pname = "kazam";
   version = "unstable-2021-06-22";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "niknah";
diff --git a/pkgs/by-name/kc/kcc/package.nix b/pkgs/by-name/kc/kcc/package.nix
index 068ae17f5f7d..9d3eac75c343 100644
--- a/pkgs/by-name/kc/kcc/package.nix
+++ b/pkgs/by-name/kc/kcc/package.nix
@@ -12,6 +12,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "kcc";
   version = "7.5.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "ciromattia";
diff --git a/pkgs/by-name/ke/kerbrute/package.nix b/pkgs/by-name/ke/kerbrute/package.nix
index c3f3b222816e..921f80abe420 100644
--- a/pkgs/by-name/ke/kerbrute/package.nix
+++ b/pkgs/by-name/ke/kerbrute/package.nix
@@ -7,6 +7,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "kerbrute";
   version = "0.0.2";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/ke/kernel-hardening-checker/package.nix b/pkgs/by-name/ke/kernel-hardening-checker/package.nix
index 911e25da1f83..51dde18e0d1e 100644
--- a/pkgs/by-name/ke/kernel-hardening-checker/package.nix
+++ b/pkgs/by-name/ke/kernel-hardening-checker/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "kernel-hardening-checker";
   version = "0.6.10";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "a13xp0p0v";
diff --git a/pkgs/by-name/ke/keymapviz/package.nix b/pkgs/by-name/ke/keymapviz/package.nix
index 35d41675d7b6..4bd76dc78669 100644
--- a/pkgs/by-name/ke/keymapviz/package.nix
+++ b/pkgs/by-name/ke/keymapviz/package.nix
@@ -7,6 +7,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "keymapviz";
   version = "1.14.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "yskoht";
diff --git a/pkgs/by-name/kh/khard/package.nix b/pkgs/by-name/kh/khard/package.nix
index 4426c0214554..c726711b668a 100644
--- a/pkgs/by-name/kh/khard/package.nix
+++ b/pkgs/by-name/kh/khard/package.nix
@@ -8,6 +8,7 @@
 
 python3.pkgs.buildPythonApplication rec {
   version = "0.19.1";
+  format = "setuptools";
   pname = "khard";
 
   src = fetchPypi {
diff --git a/pkgs/by-name/ko/konsave/package.nix b/pkgs/by-name/ko/konsave/package.nix
index 8500a9f32d14..9b6116b132de 100644
--- a/pkgs/by-name/ko/konsave/package.nix
+++ b/pkgs/by-name/ko/konsave/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "konsave";
   version = "2.2.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit version;
diff --git a/pkgs/by-name/kr/krakenx/package.nix b/pkgs/by-name/kr/krakenx/package.nix
index a2e8e6d425ac..509e1242d96c 100644
--- a/pkgs/by-name/kr/krakenx/package.nix
+++ b/pkgs/by-name/kr/krakenx/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "krakenx";
   version = "0.0.3";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/kr/krop/package.nix b/pkgs/by-name/kr/krop/package.nix
index 6fece014dffa..bab2271141f2 100644
--- a/pkgs/by-name/kr/krop/package.nix
+++ b/pkgs/by-name/kr/krop/package.nix
@@ -9,6 +9,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "krop";
   version = "0.7.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "arminstraub";
diff --git a/pkgs/by-name/ku/kube-hunter/package.nix b/pkgs/by-name/ku/kube-hunter/package.nix
index b67c59cb2fed..4635d1a51ed9 100644
--- a/pkgs/by-name/ku/kube-hunter/package.nix
+++ b/pkgs/by-name/ku/kube-hunter/package.nix
@@ -7,6 +7,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "kube-hunter";
   version = "0.6.8";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "aquasecurity";
diff --git a/pkgs/by-name/la/labelImg/package.nix b/pkgs/by-name/la/labelImg/package.nix
index 9a6b6d033be0..2f9ed526065b 100644
--- a/pkgs/by-name/la/labelImg/package.nix
+++ b/pkgs/by-name/la/labelImg/package.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "labelImg";
   version = "1.8.6";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "HumanSignal";
diff --git a/pkgs/by-name/le/legendary-heroic/package.nix b/pkgs/by-name/le/legendary-heroic/package.nix
index 8aa57c2458e0..de0de33ef06b 100644
--- a/pkgs/by-name/le/legendary-heroic/package.nix
+++ b/pkgs/by-name/le/legendary-heroic/package.nix
@@ -10,6 +10,7 @@ in
 python3Packages.buildPythonApplication {
   pname = "legendary-heroic";
   inherit version;
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "Heroic-Games-Launcher";
diff --git a/pkgs/by-name/le/legit/package.nix b/pkgs/by-name/le/legit/package.nix
index 500b1b8fef6c..4873da60e4e9 100644
--- a/pkgs/by-name/le/legit/package.nix
+++ b/pkgs/by-name/le/legit/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "legit";
   version = "1.2.0.post0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/le/lerpn/package.nix b/pkgs/by-name/le/lerpn/package.nix
index ac1d3d2e49cf..33f08c1315a7 100644
--- a/pkgs/by-name/le/lerpn/package.nix
+++ b/pkgs/by-name/le/lerpn/package.nix
@@ -7,6 +7,7 @@
 python3.pkgs.buildPythonApplication {
   pname = "lerpn";
   version = "unstable-2023-06-09";
+  format = "setuptools";
 
   src = fetchFromGitea {
     domain = "gitea.alexisvl.rocks";
diff --git a/pkgs/by-name/le/lesscpy/package.nix b/pkgs/by-name/le/lesscpy/package.nix
index eb3e53b80819..a60f1074af1b 100644
--- a/pkgs/by-name/le/lesscpy/package.nix
+++ b/pkgs/by-name/le/lesscpy/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "lesscpy";
   version = "0.15.1";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/le/lesspass-cli/package.nix b/pkgs/by-name/le/lesspass-cli/package.nix
index 5ef005aec7e8..4c24e825dbe3 100644
--- a/pkgs/by-name/le/lesspass-cli/package.nix
+++ b/pkgs/by-name/le/lesspass-cli/package.nix
@@ -16,6 +16,7 @@ in
 buildPythonApplication rec {
   pname = "lesspass-cli";
   version = "9.1.9";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = repo;
diff --git a/pkgs/by-name/lg/lgpio/package.nix b/pkgs/by-name/lg/lgpio/package.nix
index 185dd2f0b869..73d8c4853d1e 100644
--- a/pkgs/by-name/lg/lgpio/package.nix
+++ b/pkgs/by-name/lg/lgpio/package.nix
@@ -23,6 +23,7 @@ in
 mkDerivation rec {
   pname = "lgpio";
   version = "0.2.2";
+  format = if pyProject == "" then null else "setuptools";
 
   src = fetchFromGitHub {
     owner = "joan2937";
diff --git a/pkgs/by-name/ln/lndmanage/package.nix b/pkgs/by-name/ln/lndmanage/package.nix
index 7b40b4d23ed6..c19ae58d9a0d 100644
--- a/pkgs/by-name/ln/lndmanage/package.nix
+++ b/pkgs/by-name/ln/lndmanage/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "lndmanage";
   version = "0.16.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "bitromortac";
diff --git a/pkgs/by-name/lo/loxodo/package.nix b/pkgs/by-name/lo/loxodo/package.nix
index 46b84c7ceadc..c8a1ed6943f1 100644
--- a/pkgs/by-name/lo/loxodo/package.nix
+++ b/pkgs/by-name/lo/loxodo/package.nix
@@ -7,6 +7,7 @@
 python3.pkgs.buildPythonApplication {
   pname = "loxodo";
   version = "unstable-2021-02-08";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "sommer";
diff --git a/pkgs/by-name/lx/lxd-image-server/package.nix b/pkgs/by-name/lx/lxd-image-server/package.nix
index cc17908a5da1..b1d68f477418 100644
--- a/pkgs/by-name/lx/lxd-image-server/package.nix
+++ b/pkgs/by-name/lx/lxd-image-server/package.nix
@@ -10,6 +10,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "lxd-image-server";
   version = "0.0.4";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "Avature";
diff --git a/pkgs/by-name/ma/mapproxy/package.nix b/pkgs/by-name/ma/mapproxy/package.nix
index c59573b4bb09..cc47c38df0ab 100644
--- a/pkgs/by-name/ma/mapproxy/package.nix
+++ b/pkgs/by-name/ma/mapproxy/package.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "mapproxy";
   version = "4.1.2";
+  format = "setuptools";
   disabled = python3Packages.pythonOlder "3.8";
 
   src = fetchFromGitHub {
diff --git a/pkgs/by-name/ma/mastodon-archive/package.nix b/pkgs/by-name/ma/mastodon-archive/package.nix
index 09bfc3c5eebd..7825493545d9 100644
--- a/pkgs/by-name/ma/mastodon-archive/package.nix
+++ b/pkgs/by-name/ma/mastodon-archive/package.nix
@@ -7,6 +7,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "mastodon-archive";
   version = "1.4.2";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "kensanata";
diff --git a/pkgs/by-name/ma/matrix-synapse-unwrapped/plugins/mjolnir-antispam.nix b/pkgs/by-name/ma/matrix-synapse-unwrapped/plugins/mjolnir-antispam.nix
index 99a502f33c37..8309c9971b72 100644
--- a/pkgs/by-name/ma/matrix-synapse-unwrapped/plugins/mjolnir-antispam.nix
+++ b/pkgs/by-name/ma/matrix-synapse-unwrapped/plugins/mjolnir-antispam.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "matrix-synapse-mjolnir-antispam";
   version = "1.10.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "matrix-org";
diff --git a/pkgs/by-name/ma/matrix-synapse-unwrapped/plugins/pam.nix b/pkgs/by-name/ma/matrix-synapse-unwrapped/plugins/pam.nix
index 5f535a6be4d7..02102099e604 100644
--- a/pkgs/by-name/ma/matrix-synapse-unwrapped/plugins/pam.nix
+++ b/pkgs/by-name/ma/matrix-synapse-unwrapped/plugins/pam.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "matrix-synapse-pam";
   version = "0.1.3";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "14mRh4X0r";
diff --git a/pkgs/by-name/ma/matrix-synapse-unwrapped/plugins/shared-secret-auth.nix b/pkgs/by-name/ma/matrix-synapse-unwrapped/plugins/shared-secret-auth.nix
index d2455a0009b2..2813cda8a4fe 100644
--- a/pkgs/by-name/ma/matrix-synapse-unwrapped/plugins/shared-secret-auth.nix
+++ b/pkgs/by-name/ma/matrix-synapse-unwrapped/plugins/shared-secret-auth.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "matrix-synapse-shared-secret-auth";
   version = "2.0.2";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "devture";
diff --git a/pkgs/by-name/ma/mautrix-googlechat/package.nix b/pkgs/by-name/ma/mautrix-googlechat/package.nix
index ba8517720acd..be0a62814998 100644
--- a/pkgs/by-name/ma/mautrix-googlechat/package.nix
+++ b/pkgs/by-name/ma/mautrix-googlechat/package.nix
@@ -10,6 +10,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "mautrix-googlechat";
   version = "0.5.2";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "mautrix";
diff --git a/pkgs/by-name/mb/mbed-cli/package.nix b/pkgs/by-name/mb/mbed-cli/package.nix
index 0af459cfcccc..3004e1210074 100644
--- a/pkgs/by-name/mb/mbed-cli/package.nix
+++ b/pkgs/by-name/mb/mbed-cli/package.nix
@@ -11,6 +11,7 @@ with python3Packages;
 buildPythonApplication rec {
   pname = "mbed-cli";
   version = "1.10.5";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/md/md-tangle/package.nix b/pkgs/by-name/md/md-tangle/package.nix
index 6a65a4e69fd6..b5d5d7650888 100644
--- a/pkgs/by-name/md/md-tangle/package.nix
+++ b/pkgs/by-name/md/md-tangle/package.nix
@@ -7,6 +7,7 @@
 python3.pkgs.buildPythonPackage rec {
   pname = "md-tangle";
   version = "1.4.4";
+  format = "setuptools";
 
   # By some strange reason, fetchPypi fails miserably
   src = fetchFromGitHub {
diff --git a/pkgs/by-name/md/mdslides/package.nix b/pkgs/by-name/md/mdslides/package.nix
index af79bde33f18..6932e8a4a526 100644
--- a/pkgs/by-name/md/mdslides/package.nix
+++ b/pkgs/by-name/md/mdslides/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication {
   pname = "mdslides";
   version = "unstable-2022-12-15";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "dadoomer";
diff --git a/pkgs/by-name/me/me_cleaner/package.nix b/pkgs/by-name/me/me_cleaner/package.nix
index 9019cecd7e04..3d5419fd5b56 100644
--- a/pkgs/by-name/me/me_cleaner/package.nix
+++ b/pkgs/by-name/me/me_cleaner/package.nix
@@ -7,6 +7,7 @@
 python3.pkgs.buildPythonPackage rec {
   pname = "me_cleaner";
   version = "1.2";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "corna";
diff --git a/pkgs/by-name/me/mediagoblin/package.nix b/pkgs/by-name/me/mediagoblin/package.nix
index e02b2c217c2e..439a73563959 100644
--- a/pkgs/by-name/me/mediagoblin/package.nix
+++ b/pkgs/by-name/me/mediagoblin/package.nix
@@ -41,6 +41,7 @@ let
   };
 in
 python.pkgs.buildPythonApplication rec {
+  format = "setuptools";
   pname = "mediagoblin";
   inherit version src;
 
diff --git a/pkgs/by-name/me/menulibre/package.nix b/pkgs/by-name/me/menulibre/package.nix
index a5a9e2e8bb87..1a5c1d1743c3 100644
--- a/pkgs/by-name/me/menulibre/package.nix
+++ b/pkgs/by-name/me/menulibre/package.nix
@@ -16,6 +16,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "menulibre";
   version = "2.4.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "bluesabre";
diff --git a/pkgs/by-name/me/meson/package.nix b/pkgs/by-name/me/meson/package.nix
index 87676a568e6e..723580f0db45 100644
--- a/pkgs/by-name/me/meson/package.nix
+++ b/pkgs/by-name/me/meson/package.nix
@@ -17,6 +17,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "meson";
   version = "1.8.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "mesonbuild";
diff --git a/pkgs/by-name/mi/mimeo/package.nix b/pkgs/by-name/mi/mimeo/package.nix
index 444203ba8901..95f41f74a50f 100644
--- a/pkgs/by-name/mi/mimeo/package.nix
+++ b/pkgs/by-name/mi/mimeo/package.nix
@@ -12,6 +12,7 @@ in
 python3Packages.buildPythonApplication {
   pname = "mimeo";
   inherit version;
+  format = "setuptools";
 
   src = fetchurl {
     url = "https://xyne.dev/projects/mimeo/src/mimeo-${version}.tar.xz";
diff --git a/pkgs/by-name/mi/minigalaxy/package.nix b/pkgs/by-name/mi/minigalaxy/package.nix
index 8faa61133772..9d3772d91b44 100644
--- a/pkgs/by-name/mi/minigalaxy/package.nix
+++ b/pkgs/by-name/mi/minigalaxy/package.nix
@@ -17,6 +17,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "minigalaxy";
   version = "1.3.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "sharkwouter";
diff --git a/pkgs/by-name/ml/mlarchive2maildir/package.nix b/pkgs/by-name/ml/mlarchive2maildir/package.nix
index e80d7a5d35af..73de65a83b06 100644
--- a/pkgs/by-name/ml/mlarchive2maildir/package.nix
+++ b/pkgs/by-name/ml/mlarchive2maildir/package.nix
@@ -7,6 +7,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "mlarchive2maildir";
   version = "0.0.9";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/mn/mnemosyne/package.nix b/pkgs/by-name/mn/mnemosyne/package.nix
index eb7ee2a36853..325bb12d7164 100644
--- a/pkgs/by-name/mn/mnemosyne/package.nix
+++ b/pkgs/by-name/mn/mnemosyne/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "mnemosyne";
   version = "2.10.1";
+  format = "setuptools";
 
   src = fetchurl {
     url = "mirror://sourceforge/project/mnemosyne-proj/mnemosyne/mnemosyne-${version}/Mnemosyne-${version}.tar.gz";
diff --git a/pkgs/by-name/mo/mongoaudit/package.nix b/pkgs/by-name/mo/mongoaudit/package.nix
index d95e810b01db..9c043d092ebe 100644
--- a/pkgs/by-name/mo/mongoaudit/package.nix
+++ b/pkgs/by-name/mo/mongoaudit/package.nix
@@ -7,6 +7,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "mongoaudit";
   version = "0.1.1";
+  format = "setuptools";
 
   disabled = python3.pythonOlder "3.8";
 
diff --git a/pkgs/by-name/mo/monosat/package.nix b/pkgs/by-name/mo/monosat/package.nix
index 3d8159624586..c5fbc9824ebe 100644
--- a/pkgs/by-name/mo/monosat/package.nix
+++ b/pkgs/by-name/mo/monosat/package.nix
@@ -88,6 +88,7 @@ let
       pytestCheckHook,
     }:
     buildPythonPackage {
+      format = "setuptools";
       inherit
         pname
         version
diff --git a/pkgs/by-name/mo/moodle-dl/package.nix b/pkgs/by-name/mo/moodle-dl/package.nix
index 8af6e2c7ef75..b63b672ac8ca 100644
--- a/pkgs/by-name/mo/moodle-dl/package.nix
+++ b/pkgs/by-name/mo/moodle-dl/package.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "moodle-dl";
   version = "2.3.13";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "C0D3D3V";
diff --git a/pkgs/by-name/mp/mpfshell/package.nix b/pkgs/by-name/mp/mpfshell/package.nix
index 5b0ef4f8d699..f89827a72c35 100644
--- a/pkgs/by-name/mp/mpfshell/package.nix
+++ b/pkgs/by-name/mp/mpfshell/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonPackage {
   pname = "mpfshell-unstable";
   version = "2020-04-11";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "wendlers";
diff --git a/pkgs/by-name/mu/multiqc/package.nix b/pkgs/by-name/mu/multiqc/package.nix
index 522870eca897..ad401e888e09 100644
--- a/pkgs/by-name/mu/multiqc/package.nix
+++ b/pkgs/by-name/mu/multiqc/package.nix
@@ -11,6 +11,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "multiqc";
   version = "1.29";
+  format = "setuptools";
 
   # Two data sources. One for the code, another for the test data
   srcs = [
diff --git a/pkgs/by-name/mu/mutmut/package.nix b/pkgs/by-name/mu/mutmut/package.nix
index 7d05a0215d94..57a5618bb775 100644
--- a/pkgs/by-name/mu/mutmut/package.nix
+++ b/pkgs/by-name/mu/mutmut/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "mutmut";
   version = "3.2.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     repo = "mutmut";
diff --git a/pkgs/by-name/mu/mutt-ics/package.nix b/pkgs/by-name/mu/mutt-ics/package.nix
index 75cd0f5671a9..5e9a6d985f57 100644
--- a/pkgs/by-name/mu/mutt-ics/package.nix
+++ b/pkgs/by-name/mu/mutt-ics/package.nix
@@ -8,6 +8,7 @@ with python3.pkgs;
 buildPythonApplication rec {
   pname = "mutt-ics";
   version = "0.9.2";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit version;
diff --git a/pkgs/by-name/my/mymcplus/package.nix b/pkgs/by-name/my/mymcplus/package.nix
index 60b1a7136979..9c69614b3b24 100644
--- a/pkgs/by-name/my/mymcplus/package.nix
+++ b/pkgs/by-name/my/mymcplus/package.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "mymcplus";
   version = "3.0.5";
+  format = "setuptools";
 
   src = fetchFromSourcehut {
     owner = "~thestr4ng3r";
diff --git a/pkgs/by-name/na/nagstamon/package.nix b/pkgs/by-name/na/nagstamon/package.nix
index 70da36703ebb..2145411fee4a 100644
--- a/pkgs/by-name/na/nagstamon/package.nix
+++ b/pkgs/by-name/na/nagstamon/package.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "nagstamon";
   version = "3.16.2";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "HenriWahl";
diff --git a/pkgs/by-name/nb/nbstripout/package.nix b/pkgs/by-name/nb/nbstripout/package.nix
index 4978722e6382..8f957f53e2e2 100644
--- a/pkgs/by-name/nb/nbstripout/package.nix
+++ b/pkgs/by-name/nb/nbstripout/package.nix
@@ -10,6 +10,7 @@
 
 python3.pkgs.buildPythonApplication rec {
   version = "0.8.1";
+  format = "setuptools";
   pname = "nbstripout";
 
   src = fetchPypi {
diff --git a/pkgs/by-name/ne/nengo-gui/package.nix b/pkgs/by-name/ne/nengo-gui/package.nix
index b143a727816a..21ced9321462 100644
--- a/pkgs/by-name/ne/nengo-gui/package.nix
+++ b/pkgs/by-name/ne/nengo-gui/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonPackage rec {
   pname = "nengo-gui";
   version = "0.4.9";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "nengo";
diff --git a/pkgs/by-name/ne/neovim-remote/package.nix b/pkgs/by-name/ne/neovim-remote/package.nix
index 566f323ce2c6..29737cc3cdc7 100644
--- a/pkgs/by-name/ne/neovim-remote/package.nix
+++ b/pkgs/by-name/ne/neovim-remote/package.nix
@@ -10,6 +10,7 @@ with python3.pkgs;
 buildPythonApplication rec {
   pname = "neovim-remote";
   version = "2.5.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "mhinz";
diff --git a/pkgs/by-name/nh/nhentai/package.nix b/pkgs/by-name/nh/nhentai/package.nix
index 5a805481532c..f025aab0b51b 100644
--- a/pkgs/by-name/nh/nhentai/package.nix
+++ b/pkgs/by-name/nh/nhentai/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "nhentai";
   version = "0.5.3";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "RicterZ";
diff --git a/pkgs/by-name/ni/nimbo/package.nix b/pkgs/by-name/ni/nimbo/package.nix
index cc0a5ac020f6..b7bca401305c 100644
--- a/pkgs/by-name/ni/nimbo/package.nix
+++ b/pkgs/by-name/ni/nimbo/package.nix
@@ -9,6 +9,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "nimbo";
   version = "0.3.0";
+  format = "setuptools";
   disabled = python3.pythonOlder "3.6";
 
   src = fetchFromGitHub {
diff --git a/pkgs/by-name/ni/nix-heuristic-gc/package.nix b/pkgs/by-name/ni/nix-heuristic-gc/package.nix
index 88cad6addb7a..ed9589890bd9 100644
--- a/pkgs/by-name/ni/nix-heuristic-gc/package.nix
+++ b/pkgs/by-name/ni/nix-heuristic-gc/package.nix
@@ -10,6 +10,7 @@
 python3Packages.buildPythonPackage rec {
   pname = "nix-heuristic-gc";
   version = "0.6.1";
+  format = "setuptools";
   src = fetchFromGitHub {
     owner = "risicle";
     repo = "nix-heuristic-gc";
diff --git a/pkgs/by-name/no/norminette/package.nix b/pkgs/by-name/no/norminette/package.nix
index af2cef24142b..87c6998f1ca7 100644
--- a/pkgs/by-name/no/norminette/package.nix
+++ b/pkgs/by-name/no/norminette/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "norminette";
   version = "3.3.58";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "42School";
diff --git a/pkgs/by-name/no/noteshrink/package.nix b/pkgs/by-name/no/noteshrink/package.nix
index 7bb3a83df099..959f7aa525f2 100644
--- a/pkgs/by-name/no/noteshrink/package.nix
+++ b/pkgs/by-name/no/noteshrink/package.nix
@@ -10,6 +10,7 @@ with python3.pkgs;
 buildPythonApplication rec {
   pname = "noteshrink";
   version = "0.1.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "mzucker";
diff --git a/pkgs/by-name/no/nototools/package.nix b/pkgs/by-name/no/nototools/package.nix
index 5900d8c3c5bf..8ec68eecefdb 100644
--- a/pkgs/by-name/no/nototools/package.nix
+++ b/pkgs/by-name/no/nototools/package.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "nototools";
   version = "0.2.20";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "googlefonts";
diff --git a/pkgs/by-name/no/nox/package.nix b/pkgs/by-name/no/nox/package.nix
index 296ddefcd916..e1db0d13a542 100644
--- a/pkgs/by-name/no/nox/package.nix
+++ b/pkgs/by-name/no/nox/package.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "nox";
   version = "0.0.6";
+  format = "setuptools";
   namePrefix = "";
 
   src = fetchurl {
diff --git a/pkgs/by-name/np/npm-lockfile-fix/package.nix b/pkgs/by-name/np/npm-lockfile-fix/package.nix
index e9aae5f92a84..ece36548399e 100644
--- a/pkgs/by-name/np/npm-lockfile-fix/package.nix
+++ b/pkgs/by-name/np/npm-lockfile-fix/package.nix
@@ -8,6 +8,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "npm-lockfile-fix";
   version = "0.1.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "jeslie0";
diff --git a/pkgs/by-name/nt/ntfy/webpush.nix b/pkgs/by-name/nt/ntfy/webpush.nix
index 242a45052405..0669562b1d42 100644
--- a/pkgs/by-name/nt/ntfy/webpush.nix
+++ b/pkgs/by-name/nt/ntfy/webpush.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "ntfy-webpush";
   version = "0.1.3";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "dschep";
diff --git a/pkgs/by-name/nv/nvitop/package.nix b/pkgs/by-name/nv/nvitop/package.nix
index a8b075749be3..eb4d98ad8b08 100644
--- a/pkgs/by-name/nv/nvitop/package.nix
+++ b/pkgs/by-name/nv/nvitop/package.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "nvitop";
   version = "1.5.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "XuehaiPan";
diff --git a/pkgs/by-name/nv/nvmet-cli/package.nix b/pkgs/by-name/nv/nvmet-cli/package.nix
index 00bfcef2829e..7380fdb40092 100644
--- a/pkgs/by-name/nv/nvmet-cli/package.nix
+++ b/pkgs/by-name/nv/nvmet-cli/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "nvmet-cli";
   version = "0.7";
+  format = "setuptools";
 
   src = fetchurl {
     url = "ftp://ftp.infradead.org/pub/nvmetcli/nvmetcli-${version}.tar.gz";
diff --git a/pkgs/by-name/nv/nvpy/package.nix b/pkgs/by-name/nv/nvpy/package.nix
index e2f1e1112c37..2a8c539328da 100644
--- a/pkgs/by-name/nv/nvpy/package.nix
+++ b/pkgs/by-name/nv/nvpy/package.nix
@@ -9,6 +9,7 @@ let
 in
 pythonPackages.buildPythonApplication rec {
   version = "2.3.1";
+  format = "setuptools";
   pname = "nvpy";
 
   src = fetchFromGitHub {
diff --git a/pkgs/by-name/nw/nwg-clipman/package.nix b/pkgs/by-name/nw/nwg-clipman/package.nix
index 46ef7630325e..87473c39a51d 100644
--- a/pkgs/by-name/nw/nwg-clipman/package.nix
+++ b/pkgs/by-name/nw/nwg-clipman/package.nix
@@ -14,6 +14,7 @@
 python3Packages.buildPythonPackage rec {
   pname = "nwg-clipman";
   version = "0.2.5";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "nwg-piotr";
diff --git a/pkgs/by-name/nw/nwg-displays/package.nix b/pkgs/by-name/nw/nwg-displays/package.nix
index dae8595613ef..6d5472762fd9 100644
--- a/pkgs/by-name/nw/nwg-displays/package.nix
+++ b/pkgs/by-name/nw/nwg-displays/package.nix
@@ -16,6 +16,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "nwg-displays";
   version = "0.3.25";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "nwg-piotr";
diff --git a/pkgs/by-name/nw/nwg-panel/package.nix b/pkgs/by-name/nw/nwg-panel/package.nix
index 182e06e9512a..086d98007e47 100644
--- a/pkgs/by-name/nw/nwg-panel/package.nix
+++ b/pkgs/by-name/nw/nwg-panel/package.nix
@@ -24,6 +24,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "nwg-panel";
   version = "0.10.7";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "nwg-piotr";
diff --git a/pkgs/by-name/nw/nwg-wrapper/package.nix b/pkgs/by-name/nw/nwg-wrapper/package.nix
index f9f113143400..8a7bfa40ed5c 100644
--- a/pkgs/by-name/nw/nwg-wrapper/package.nix
+++ b/pkgs/by-name/nw/nwg-wrapper/package.nix
@@ -12,6 +12,7 @@
 python3Packages.buildPythonPackage rec {
   pname = "nwg-wrapper";
   version = "0.1.3";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "nwg-piotr";
diff --git a/pkgs/by-name/ny/nyx/package.nix b/pkgs/by-name/ny/nyx/package.nix
index 9ef34e4ddf7a..093869d0ede0 100644
--- a/pkgs/by-name/ny/nyx/package.nix
+++ b/pkgs/by-name/ny/nyx/package.nix
@@ -9,6 +9,7 @@ with python3Packages;
 buildPythonApplication rec {
   pname = "nyx";
   version = "2.1.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/oc/octoprint/package.nix b/pkgs/by-name/oc/octoprint/package.nix
index d6d4112bdfbe..01cebfd8e488 100644
--- a/pkgs/by-name/oc/octoprint/package.nix
+++ b/pkgs/by-name/oc/octoprint/package.nix
@@ -21,6 +21,7 @@ let
         octoprint-filecheck = self.buildPythonPackage rec {
           pname = "OctoPrint-FileCheck";
           version = "2024.11.12";
+          format = "setuptools";
 
           src = fetchFromGitHub {
             owner = "OctoPrint";
@@ -37,6 +38,7 @@ let
         octoprint-firmwarecheck = self.buildPythonPackage rec {
           pname = "OctoPrint-FirmwareCheck";
           version = "2021.10.11";
+          format = "setuptools";
 
           src = fetchFromGitHub {
             owner = "OctoPrint";
@@ -74,6 +76,7 @@ let
         octoprint = self.buildPythonPackage rec {
           pname = "OctoPrint";
           version = "1.11.2";
+          format = "setuptools";
 
           src = fetchFromGitHub {
             owner = "OctoPrint";
diff --git a/pkgs/by-name/oc/octoprint/plugins.nix b/pkgs/by-name/oc/octoprint/plugins.nix
index 6599a4a88f7c..e60016edfb73 100644
--- a/pkgs/by-name/oc/octoprint/plugins.nix
+++ b/pkgs/by-name/oc/octoprint/plugins.nix
@@ -15,7 +15,7 @@ let
       args
       // {
         pname = "octoprint-plugin-${args.pname}";
-        inherit (args) version;
+        inherit (args) version format;
         propagatedBuildInputs = (args.propagatedBuildInputs or [ ]) ++ [ super.octoprint ];
         # none of the following have tests
         doCheck = false;
@@ -28,6 +28,7 @@ in
   m86motorsoff = buildPlugin rec {
     pname = "m84motorsoff";
     version = "0.1.0";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "ntoff";
@@ -47,6 +48,7 @@ in
   abl-expert = buildPlugin rec {
     pname = "abl-expert";
     version = "0.6";
+    format = "setuptools";
 
     src = fetchFromGitLab {
       domain = "framagit.org";
@@ -67,6 +69,7 @@ in
   bedlevelvisualizer = buildPlugin rec {
     pname = "bedlevelvisualizer";
     version = "1.1.1";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "jneilliii";
@@ -86,6 +89,7 @@ in
   costestimation = buildPlugin rec {
     pname = "costestimation";
     version = "3.4.0";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "OllisGit";
@@ -105,6 +109,7 @@ in
   curaenginelegacy = buildPlugin rec {
     pname = "curaenginelegacy";
     version = "1.1.2";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "OctoPrint";
@@ -124,6 +129,7 @@ in
   displayprogress = buildPlugin rec {
     pname = "displayprogress";
     version = "0.1.3";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "OctoPrint";
@@ -143,6 +149,7 @@ in
   displaylayerprogress = buildPlugin rec {
     pname = "displaylayerprogress";
     version = "1.26.0";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "OllisGit";
@@ -162,6 +169,7 @@ in
   ender3v2tempfix = buildPlugin {
     pname = "ender3v2tempfix";
     version = "unstable-2021-04-27";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "SimplyPrint";
@@ -181,6 +189,7 @@ in
   firmwareupdater = buildPlugin rec {
     pname = "firmwareupdater";
     version = "1.14.0";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "OctoPrint";
@@ -202,6 +211,7 @@ in
   fullscreen = buildPlugin rec {
     pname = "fullscreen";
     version = "0.0.6";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "BillyBlaze";
@@ -221,6 +231,7 @@ in
   gcodeeditor = buildPlugin rec {
     pname = "gcodeeditor";
     version = "0.2.12";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "ieatacid";
@@ -240,6 +251,7 @@ in
   marlingcodedocumentation = buildPlugin rec {
     pname = "marlingcodedocumentation";
     version = "0.13.0";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "costas-basdekis";
@@ -259,6 +271,7 @@ in
   mqtt = buildPlugin rec {
     pname = "mqtt";
     version = "0.8.16";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "OctoPrint";
@@ -280,6 +293,7 @@ in
   mqttchambertemperature = buildPlugin rec {
     pname = "mqttchambertemperature";
     version = "0.0.3";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "synman";
@@ -301,6 +315,7 @@ in
   navbartemp = buildPlugin rec {
     pname = "navbartemp";
     version = "0.15";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "imrahil";
@@ -320,6 +335,7 @@ in
   obico = buildPlugin rec {
     pname = "obico";
     version = "2.5.0";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "TheSpaghettiDetective";
@@ -346,6 +362,7 @@ in
   octopod = buildPlugin rec {
     pname = "octopod";
     version = "0.3.18";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "gdombiak";
@@ -367,6 +384,7 @@ in
   printtimegenius = buildPlugin rec {
     pname = "printtimegenius";
     version = "2.4.0";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "eyal0";
@@ -397,6 +415,7 @@ in
   prusaslicerthumbnails = buildPlugin rec {
     pname = "prusaslicerthumbnails";
     version = "1.0.8";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "jneilliii";
@@ -418,6 +437,7 @@ in
   psucontrol = buildPlugin rec {
     pname = "psucontrol";
     version = "1.0.6";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "kantlivelong";
@@ -446,6 +466,7 @@ in
   resource-monitor = buildPlugin rec {
     pname = "resource-monitor";
     version = "0.3.16";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "Renaud11232";
@@ -467,6 +488,7 @@ in
   simpleemergencystop = buildPlugin rec {
     pname = "simpleemergencystop";
     version = "1.0.5";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "Sebclem";
@@ -486,6 +508,7 @@ in
   stlviewer = buildPlugin rec {
     pname = "stlviewer";
     version = "0.4.2";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "jneilliii";
@@ -505,6 +528,7 @@ in
   telegram = buildPlugin rec {
     pname = "telegram";
     version = "1.6.5";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "fabianonline";
@@ -526,6 +550,7 @@ in
   themeify = buildPlugin rec {
     pname = "themeify";
     version = "1.2.2";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "Birkbjo";
@@ -545,6 +570,7 @@ in
   timelapsepurger = buildPlugin rec {
     pname = "firmwareupdater";
     version = "0.1.4";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "jneilliii";
@@ -564,6 +590,7 @@ in
   titlestatus = buildPlugin rec {
     pname = "titlestatus";
     version = "0.0.5";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "MoonshineSG";
@@ -583,6 +610,7 @@ in
   touchui = buildPlugin rec {
     pname = "touchui";
     version = "0.3.18";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "BillyBlaze";
@@ -602,6 +630,7 @@ in
   octoklipper = buildPlugin rec {
     pname = "octoklipper";
     version = "0.3.8.3";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "AliceGrey";
@@ -621,6 +650,7 @@ in
   octolapse = buildPlugin rec {
     pname = "octolapse";
     version = "0.4.2";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "FormerLurker";
@@ -668,6 +698,7 @@ in
   dashboard = buildPlugin rec {
     pname = "dashboard";
     version = "1.18.3";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "StefanCohen";
diff --git a/pkgs/by-name/on/onboard/package.nix b/pkgs/by-name/on/onboard/package.nix
index 8ea4bde90745..381a25bfb870 100644
--- a/pkgs/by-name/on/onboard/package.nix
+++ b/pkgs/by-name/on/onboard/package.nix
@@ -40,6 +40,7 @@ in
 python3.pkgs.buildPythonApplication rec {
   pname = "onboard";
   version = "${majorVersion}.1";
+  format = "setuptools";
 
   src = fetchurl {
     url = "https://launchpad.net/onboard/${majorVersion}/${version}/+download/${pname}-${version}.tar.gz";
diff --git a/pkgs/by-name/on/onedrivegui/package.nix b/pkgs/by-name/on/onedrivegui/package.nix
index d03bc1e07943..93f296b61bd6 100644
--- a/pkgs/by-name/on/onedrivegui/package.nix
+++ b/pkgs/by-name/on/onedrivegui/package.nix
@@ -28,6 +28,7 @@ in
 python3Packages.buildPythonApplication rec {
   pname = "onedrivegui";
   inherit version;
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "bpozdena";
diff --git a/pkgs/by-name/on/onioncircuits/package.nix b/pkgs/by-name/on/onioncircuits/package.nix
index 39bc5c47ed4c..55810ea73698 100644
--- a/pkgs/by-name/on/onioncircuits/package.nix
+++ b/pkgs/by-name/on/onioncircuits/package.nix
@@ -11,6 +11,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "onioncircuits";
   version = "0.8.1";
+  format = "setuptools";
 
   src = fetchFromGitLab {
     domain = "gitlab.tails.boum.org";
diff --git a/pkgs/by-name/on/onlykey-agent/package.nix b/pkgs/by-name/on/onlykey-agent/package.nix
index 1894f333e21d..35b607f71798 100644
--- a/pkgs/by-name/on/onlykey-agent/package.nix
+++ b/pkgs/by-name/on/onlykey-agent/package.nix
@@ -11,6 +11,7 @@ let
     buildPythonPackage rec {
       pname = "bech32";
       version = "1.2.0";
+      format = "setuptools";
 
       src = fetchPypi {
         inherit pname version;
@@ -52,6 +53,7 @@ in
 python3Packages.buildPythonApplication rec {
   pname = "onlykey-agent";
   version = "1.1.15";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/on/onlykey-cli/package.nix b/pkgs/by-name/on/onlykey-cli/package.nix
index df499ea1a69c..fdf0db934f92 100644
--- a/pkgs/by-name/on/onlykey-cli/package.nix
+++ b/pkgs/by-name/on/onlykey-cli/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "onlykey-cli";
   version = "1.2.10";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit version;
diff --git a/pkgs/by-name/op/open-fprintd/package.nix b/pkgs/by-name/op/open-fprintd/package.nix
index 54de6a6e7457..b15b225060ef 100644
--- a/pkgs/by-name/op/open-fprintd/package.nix
+++ b/pkgs/by-name/op/open-fprintd/package.nix
@@ -9,6 +9,7 @@
 python3Packages.buildPythonPackage rec {
   pname = "open-fprintd";
   version = "0.6";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "uunicorn";
diff --git a/pkgs/by-name/op/opensnitch-ui/package.nix b/pkgs/by-name/op/opensnitch-ui/package.nix
index 2001eb0d96dc..d65d348d4ca9 100644
--- a/pkgs/by-name/op/opensnitch-ui/package.nix
+++ b/pkgs/by-name/op/opensnitch-ui/package.nix
@@ -6,6 +6,7 @@
 }:
 
 python3Packages.buildPythonApplication {
+  format = "setuptools";
   pname = "opensnitch-ui";
 
   inherit (opensnitch) src version;
diff --git a/pkgs/by-name/pa/parsero/package.nix b/pkgs/by-name/pa/parsero/package.nix
index c1d2de15f2fc..68725adaa077 100644
--- a/pkgs/by-name/pa/parsero/package.nix
+++ b/pkgs/by-name/pa/parsero/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication {
   pname = "parsero";
   version = "0.81";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "behindthefirewalls";
diff --git a/pkgs/by-name/pa/pass-secret-service/package.nix b/pkgs/by-name/pa/pass-secret-service/package.nix
index a722b48c516d..63653fbfc658 100644
--- a/pkgs/by-name/pa/pass-secret-service/package.nix
+++ b/pkgs/by-name/pa/pass-secret-service/package.nix
@@ -15,6 +15,7 @@ python3.pkgs.buildPythonApplication {
   # seemingly abandoned D-Bus package pydbus and started using maintained
   # dbus-next. So let's use latest from GitHub.
   version = "0-unstable-2023-12-16";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "mdellweg";
diff --git a/pkgs/by-name/pa/patatt/package.nix b/pkgs/by-name/pa/patatt/package.nix
index b8cef0481b4d..18e27641b698 100644
--- a/pkgs/by-name/pa/patatt/package.nix
+++ b/pkgs/by-name/pa/patatt/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "patatt";
   version = "0.6.3";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/pa/patray/package.nix b/pkgs/by-name/pa/patray/package.nix
index 06a6a40fac0f..31a1fe0fea22 100644
--- a/pkgs/by-name/pa/patray/package.nix
+++ b/pkgs/by-name/pa/patray/package.nix
@@ -8,6 +8,7 @@
 python312.pkgs.buildPythonApplication rec {
   pname = "patray";
   version = "0.1.2";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit version pname;
diff --git a/pkgs/by-name/pa/patroni/package.nix b/pkgs/by-name/pa/patroni/package.nix
index 8f6b3ff4d935..7ec5e693b74f 100644
--- a/pkgs/by-name/pa/patroni/package.nix
+++ b/pkgs/by-name/pa/patroni/package.nix
@@ -11,6 +11,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "patroni";
   version = "4.0.6";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "zalando";
diff --git a/pkgs/by-name/pe/perfect-hash/package.nix b/pkgs/by-name/pe/perfect-hash/package.nix
index b9466c770104..0e049f479493 100644
--- a/pkgs/by-name/pe/perfect-hash/package.nix
+++ b/pkgs/by-name/pe/perfect-hash/package.nix
@@ -6,6 +6,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "perfect-hash";
   version = "0.4.1";
+  format = "setuptools";
 
   # Archive on pypi does not contain examples, which are very helpful to
   # understand how to use this program, so we use git source.
diff --git a/pkgs/by-name/pe/peru/package.nix b/pkgs/by-name/pe/peru/package.nix
index 41e31401f4df..8e21f92c498c 100644
--- a/pkgs/by-name/pe/peru/package.nix
+++ b/pkgs/by-name/pe/peru/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "peru";
   version = "1.3.3";
+  format = "setuptools";
 
   disabled = python3Packages.pythonOlder "3.5";
 
diff --git a/pkgs/by-name/pe/pew/package.nix b/pkgs/by-name/pe/pew/package.nix
index dee493ac1a3c..57f72abc51f2 100644
--- a/pkgs/by-name/pe/pew/package.nix
+++ b/pkgs/by-name/pe/pew/package.nix
@@ -9,6 +9,7 @@ with python3.pkgs;
 buildPythonApplication rec {
   pname = "pew";
   version = "1.2.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/pg/pg_activity/package.nix b/pkgs/by-name/pg/pg_activity/package.nix
index 595de7b7d003..0fdfe88e5cec 100644
--- a/pkgs/by-name/pg/pg_activity/package.nix
+++ b/pkgs/by-name/pg/pg_activity/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "pg_activity";
   version = "3.6.0";
+  format = "setuptools";
   disabled = python3Packages.pythonOlder "3.8";
 
   src = fetchFromGitHub {
diff --git a/pkgs/by-name/ph/photocollage/package.nix b/pkgs/by-name/ph/photocollage/package.nix
index 03894fb27b0a..ec2cc1281bd3 100644
--- a/pkgs/by-name/ph/photocollage/package.nix
+++ b/pkgs/by-name/ph/photocollage/package.nix
@@ -11,6 +11,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "photocollage";
   version = "1.4.6";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "adrienverge";
diff --git a/pkgs/by-name/pi/pick-colour-picker/package.nix b/pkgs/by-name/pi/pick-colour-picker/package.nix
index 723a5d209833..5b94c3d87780 100644
--- a/pkgs/by-name/pi/pick-colour-picker/package.nix
+++ b/pkgs/by-name/pi/pick-colour-picker/package.nix
@@ -11,6 +11,7 @@
 python3Packages.buildPythonPackage {
   pname = "pick-colour-picker";
   version = "unstable-2022-05-08";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "stuartlangridge";
diff --git a/pkgs/by-name/pi/picosnitch/package.nix b/pkgs/by-name/pi/picosnitch/package.nix
index 6d80caf6f6d4..8dce35776225 100644
--- a/pkgs/by-name/pi/picosnitch/package.nix
+++ b/pkgs/by-name/pi/picosnitch/package.nix
@@ -8,6 +8,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "picosnitch";
   version = "1.0.3";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/pi/pigpio/package.nix b/pkgs/by-name/pi/pigpio/package.nix
index 56f4c6bcdccf..41b85cc445e6 100644
--- a/pkgs/by-name/pi/pigpio/package.nix
+++ b/pkgs/by-name/pi/pigpio/package.nix
@@ -13,6 +13,7 @@ in
 mkDerivation rec {
   pname = "pigpio";
   version = "79";
+  format = if buildPythonPackage == null then null else "setuptools";
 
   src = fetchFromGitHub {
     owner = "joan2937";
diff --git a/pkgs/by-name/pi/pipreqs/package.nix b/pkgs/by-name/pi/pipreqs/package.nix
index afa52bfc1568..1e337bc60526 100644
--- a/pkgs/by-name/pi/pipreqs/package.nix
+++ b/pkgs/by-name/pi/pipreqs/package.nix
@@ -9,6 +9,7 @@ with python3.pkgs;
 buildPythonApplication rec {
   pname = "pipreqs";
   version = "0.4.13";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/pi/pirate-get/package.nix b/pkgs/by-name/pi/pirate-get/package.nix
index 3824efe0016f..ba00a9319978 100644
--- a/pkgs/by-name/pi/pirate-get/package.nix
+++ b/pkgs/by-name/pi/pirate-get/package.nix
@@ -9,6 +9,7 @@ with python3Packages;
 buildPythonApplication rec {
   pname = "pirate-get";
   version = "0.4.2";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/pi/pius/package.nix b/pkgs/by-name/pi/pius/package.nix
index 946d4590b6fc..e6bb76143622 100644
--- a/pkgs/by-name/pi/pius/package.nix
+++ b/pkgs/by-name/pi/pius/package.nix
@@ -13,6 +13,7 @@ python3Packages.buildPythonApplication {
   pname = "pius";
   namePrefix = "";
   inherit version;
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "jaymzh";
diff --git a/pkgs/by-name/pl/plakativ/package.nix b/pkgs/by-name/pl/plakativ/package.nix
index fc82f1708345..2d6999d90407 100644
--- a/pkgs/by-name/pl/plakativ/package.nix
+++ b/pkgs/by-name/pl/plakativ/package.nix
@@ -9,6 +9,7 @@ let
   version = "0.5.3";
 in
 python3Packages.buildPythonApplication {
+  format = "setuptools";
   inherit pname version;
 
   src = fetchPypi {
diff --git a/pkgs/by-name/pl/plecost/package.nix b/pkgs/by-name/pl/plecost/package.nix
index bd017ea978aa..17cb418999d0 100644
--- a/pkgs/by-name/pl/plecost/package.nix
+++ b/pkgs/by-name/pl/plecost/package.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication {
   pname = "plecost";
   version = "1.1.4";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "iniqua";
diff --git a/pkgs/by-name/pq/pqos-wrapper/package.nix b/pkgs/by-name/pq/pqos-wrapper/package.nix
index 202b7972dfeb..77453a53810a 100644
--- a/pkgs/by-name/pq/pqos-wrapper/package.nix
+++ b/pkgs/by-name/pq/pqos-wrapper/package.nix
@@ -7,6 +7,7 @@
 python3.pkgs.buildPythonApplication {
   pname = "pqos-wrapper";
   version = "unstable-2022-01-31";
+  format = "setuptools";
 
   src = fetchFromGitLab {
     group = "sosy-lab";
diff --git a/pkgs/by-name/pr/precice-config-visualizer/package.nix b/pkgs/by-name/pr/precice-config-visualizer/package.nix
index 48745d3c2a0c..73d2ba6178ca 100644
--- a/pkgs/by-name/pr/precice-config-visualizer/package.nix
+++ b/pkgs/by-name/pr/precice-config-visualizer/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication {
   pname = "config-visualizer";
   version = "unstable-2022-02-23";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "precice";
diff --git a/pkgs/by-name/pr/present/package.nix b/pkgs/by-name/pr/present/package.nix
index e2294908b45f..8d0a9af73abc 100644
--- a/pkgs/by-name/pr/present/package.nix
+++ b/pkgs/by-name/pr/present/package.nix
@@ -18,6 +18,7 @@ in
 python3Packages.buildPythonPackage rec {
   pname = "present";
   version = "0.6.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/pr/printrun/package.nix b/pkgs/by-name/pr/printrun/package.nix
index 57aad66a6c23..dffe40707e5b 100644
--- a/pkgs/by-name/pr/printrun/package.nix
+++ b/pkgs/by-name/pr/printrun/package.nix
@@ -9,6 +9,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "printrun";
   version = "2.2.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "kliment";
diff --git a/pkgs/by-name/pr/prometheus-deluge-exporter/package.nix b/pkgs/by-name/pr/prometheus-deluge-exporter/package.nix
index 0a791ed30dd9..d5f11075b3e9 100644
--- a/pkgs/by-name/pr/prometheus-deluge-exporter/package.nix
+++ b/pkgs/by-name/pr/prometheus-deluge-exporter/package.nix
@@ -7,6 +7,7 @@
 python3.pkgs.buildPythonApplication {
   pname = "deluge-exporter";
   version = "2.4.0-unstable-2024-06-02";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "ibizaman";
diff --git a/pkgs/by-name/ps/ps_mem/package.nix b/pkgs/by-name/ps/ps_mem/package.nix
index 7d5c6389119a..3849ff6f53cc 100644
--- a/pkgs/by-name/ps/ps_mem/package.nix
+++ b/pkgs/by-name/ps/ps_mem/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "ps_mem";
   version = "3.14";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "pixelb";
diff --git a/pkgs/by-name/ps/pssh/package.nix b/pkgs/by-name/ps/pssh/package.nix
index 7b01d058ed16..465256ee69ba 100644
--- a/pkgs/by-name/ps/pssh/package.nix
+++ b/pkgs/by-name/ps/pssh/package.nix
@@ -9,6 +9,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "pssh";
   version = "2.3.4";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "lilydjwg";
diff --git a/pkgs/by-name/pu/pulseaudio-dlna/package.nix b/pkgs/by-name/pu/pulseaudio-dlna/package.nix
index 46a53c17e616..5b7cbb03f1be 100644
--- a/pkgs/by-name/pu/pulseaudio-dlna/package.nix
+++ b/pkgs/by-name/pu/pulseaudio-dlna/package.nix
@@ -20,6 +20,7 @@
 python3Packages.buildPythonApplication {
   pname = "pulseaudio-dlna";
   version = "unstable-2021-11-09";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "Cygn";
diff --git a/pkgs/by-name/pu/pulseaudio-dlna/zeroconf.nix b/pkgs/by-name/pu/pulseaudio-dlna/zeroconf.nix
index 4e2c7dfeebb4..576efba1e250 100644
--- a/pkgs/by-name/pu/pulseaudio-dlna/zeroconf.nix
+++ b/pkgs/by-name/pu/pulseaudio-dlna/zeroconf.nix
@@ -13,6 +13,7 @@
 buildPythonPackage rec {
   pname = "zeroconf";
   version = "0.19.1";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/pu/pulsemeeter/package.nix b/pkgs/by-name/pu/pulsemeeter/package.nix
index ad05055892ad..137bb0ca5bfa 100644
--- a/pkgs/by-name/pu/pulsemeeter/package.nix
+++ b/pkgs/by-name/pu/pulsemeeter/package.nix
@@ -12,6 +12,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "pulsemeeter";
   version = "1.2.14";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "theRealCarneiro";
diff --git a/pkgs/by-name/pw/pwgen-secure/package.nix b/pkgs/by-name/pw/pwgen-secure/package.nix
index a9827117a994..cb390ad18690 100644
--- a/pkgs/by-name/pw/pwgen-secure/package.nix
+++ b/pkgs/by-name/pw/pwgen-secure/package.nix
@@ -11,6 +11,7 @@ in
 buildPythonApplication rec {
   pname = "pwgen-secure";
   version = "0.9.1";
+  format = "setuptools";
 
   # it needs `secrets` which was introduced in 3.6
   disabled = pythonOlder "3.6";
diff --git a/pkgs/by-name/py/pyCA/package.nix b/pkgs/by-name/py/pyCA/package.nix
index 3af887e0c051..bff6b4802f7c 100644
--- a/pkgs/by-name/py/pyCA/package.nix
+++ b/pkgs/by-name/py/pyCA/package.nix
@@ -49,6 +49,7 @@ in
 python3.pkgs.buildPythonApplication rec {
   pname = "pyca";
   version = "4.5";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "opencast";
diff --git a/pkgs/by-name/py/pyamlboot/package.nix b/pkgs/by-name/py/pyamlboot/package.nix
index 08701edea6f6..f458c519ad06 100644
--- a/pkgs/by-name/py/pyamlboot/package.nix
+++ b/pkgs/by-name/py/pyamlboot/package.nix
@@ -9,6 +9,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "pyamlboot";
   version = "1.0.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "superna9999";
diff --git a/pkgs/by-name/py/pychess/package.nix b/pkgs/by-name/py/pychess/package.nix
index c1e86e79b441..e8b5d83d6453 100644
--- a/pkgs/by-name/py/pychess/package.nix
+++ b/pkgs/by-name/py/pychess/package.nix
@@ -14,6 +14,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "pychess";
   version = "1.0.5";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "pychess";
diff --git a/pkgs/by-name/py/pydf/package.nix b/pkgs/by-name/py/pydf/package.nix
index d1e2e5291dd6..ed315fde8df2 100644
--- a/pkgs/by-name/py/pydf/package.nix
+++ b/pkgs/by-name/py/pydf/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonPackage rec {
   pname = "pydf";
   version = "12";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/py/pykickstart/package.nix b/pkgs/by-name/py/pykickstart/package.nix
index b6604fb9b4b3..b470cc2bdd21 100644
--- a/pkgs/by-name/py/pykickstart/package.nix
+++ b/pkgs/by-name/py/pykickstart/package.nix
@@ -9,6 +9,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "pykickstart";
   version = "3.65";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "pykickstart";
diff --git a/pkgs/by-name/py/pylint-exit/package.nix b/pkgs/by-name/py/pylint-exit/package.nix
index 5a1cb57dabf1..02f36b9a03fd 100644
--- a/pkgs/by-name/py/pylint-exit/package.nix
+++ b/pkgs/by-name/py/pylint-exit/package.nix
@@ -8,6 +8,7 @@ with python3Packages;
 buildPythonApplication rec {
   pname = "pylint-exit";
   version = "1.2.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "jongracecox";
diff --git a/pkgs/by-name/py/pympress/package.nix b/pkgs/by-name/py/pympress/package.nix
index 3532bf57d737..23175f261eb9 100644
--- a/pkgs/by-name/py/pympress/package.nix
+++ b/pkgs/by-name/py/pympress/package.nix
@@ -16,6 +16,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "pympress";
   version = "1.8.6";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "cimbali";
diff --git a/pkgs/by-name/py/pyradio/package.nix b/pkgs/by-name/py/pyradio/package.nix
index e66cbb27c01e..fe86671b6f6a 100644
--- a/pkgs/by-name/py/pyradio/package.nix
+++ b/pkgs/by-name/py/pyradio/package.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "pyradio";
   version = "0.9.3.11.15";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "coderholic";
diff --git a/pkgs/by-name/py/pyrseas/package.nix b/pkgs/by-name/py/pyrseas/package.nix
index b408f480b572..f46359552504 100644
--- a/pkgs/by-name/py/pyrseas/package.nix
+++ b/pkgs/by-name/py/pyrseas/package.nix
@@ -8,6 +8,7 @@ let
   pgdbconn = python3Packages.buildPythonPackage rec {
     pname = "pgdbconn";
     version = "0.8.0";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "perseas";
@@ -29,6 +30,7 @@ in
 python3Packages.buildPythonApplication rec {
   pname = "pyrseas";
   version = "0.9.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "perseas";
diff --git a/pkgs/by-name/py/pysolfc/package.nix b/pkgs/by-name/py/pysolfc/package.nix
index f7c7262a414c..45db307465d3 100644
--- a/pkgs/by-name/py/pysolfc/package.nix
+++ b/pkgs/by-name/py/pysolfc/package.nix
@@ -13,6 +13,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "pysolfc";
   version = "3.4.0";
+  format = "setuptools";
 
   src = fetchzip {
     url = "mirror://sourceforge/pysolfc/PySolFC-${version}.tar.xz";
diff --git a/pkgs/by-name/py/pyspread/package.nix b/pkgs/by-name/py/pyspread/package.nix
index 35981f5ad35c..79ff9cc849ac 100644
--- a/pkgs/by-name/py/pyspread/package.nix
+++ b/pkgs/by-name/py/pyspread/package.nix
@@ -21,6 +21,7 @@ let
     ;
 in
 python3.pkgs.buildPythonApplication {
+  format = "setuptools";
   inherit pname version src;
 
   nativeBuildInputs = [
diff --git a/pkgs/by-name/py/pytrainer/package.nix b/pkgs/by-name/py/pytrainer/package.nix
index aa075f4f8604..7922483b17c0 100644
--- a/pkgs/by-name/py/pytrainer/package.nix
+++ b/pkgs/by-name/py/pytrainer/package.nix
@@ -32,6 +32,7 @@ in
 python.pkgs.buildPythonApplication rec {
   pname = "pytrainer";
   version = "2.2.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "pytrainer";
diff --git a/pkgs/by-name/py/pywalfox-native/package.nix b/pkgs/by-name/py/pywalfox-native/package.nix
index 70459afdc3e3..74295809d5b5 100644
--- a/pkgs/by-name/py/pywalfox-native/package.nix
+++ b/pkgs/by-name/py/pywalfox-native/package.nix
@@ -6,6 +6,7 @@
 python3.pkgs.buildPythonApplication {
   pname = "pywalfox-native";
   version = "2.7.4";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "Frewacom";
diff --git a/pkgs/by-name/q-/q-text-as-data/package.nix b/pkgs/by-name/q-/q-text-as-data/package.nix
index aff72741d874..48331a879bce 100644
--- a/pkgs/by-name/q-/q-text-as-data/package.nix
+++ b/pkgs/by-name/q-/q-text-as-data/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "q-text-as-data";
   version = "2.0.19";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "harelba";
diff --git a/pkgs/by-name/qu/quast/package.nix b/pkgs/by-name/qu/quast/package.nix
index 773753d8fd22..c8ff4e3a2934 100644
--- a/pkgs/by-name/qu/quast/package.nix
+++ b/pkgs/by-name/qu/quast/package.nix
@@ -15,6 +15,7 @@ in
 pythonPackages.buildPythonApplication rec {
   pname = "quast";
   version = "5.3.0";
+  format = "setuptools";
 
   src = fetchurl {
     url = "https://github.com/ablab/quast/releases/download/${pname}_${version}/${pname}-${version}.tar.gz";
diff --git a/pkgs/by-name/qu/quisk/package.nix b/pkgs/by-name/qu/quisk/package.nix
index 69312e3b20a4..a48d2d414e90 100644
--- a/pkgs/by-name/qu/quisk/package.nix
+++ b/pkgs/by-name/qu/quisk/package.nix
@@ -10,6 +10,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "quisk";
   version = "4.2.42";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/r1/r128gain/package.nix b/pkgs/by-name/r1/r128gain/package.nix
index 63b7d312d5bd..4c0ba8d99749 100644
--- a/pkgs/by-name/r1/r128gain/package.nix
+++ b/pkgs/by-name/r1/r128gain/package.nix
@@ -11,6 +11,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "r128gain";
   version = "1.0.7";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "desbma";
diff --git a/pkgs/by-name/ra/raiseorlaunch/package.nix b/pkgs/by-name/ra/raiseorlaunch/package.nix
index 8f2d92f80eba..80d5dba11cea 100644
--- a/pkgs/by-name/ra/raiseorlaunch/package.nix
+++ b/pkgs/by-name/ra/raiseorlaunch/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "raiseorlaunch";
   version = "2.3.5";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/ra/ranger/package.nix b/pkgs/by-name/ra/ranger/package.nix
index ea93a73c13e2..7e795f3c5a0d 100644
--- a/pkgs/by-name/ra/ranger/package.nix
+++ b/pkgs/by-name/ra/ranger/package.nix
@@ -18,6 +18,7 @@
 python3Packages.buildPythonApplication {
   pname = "ranger";
   version = "1.9.3-unstable-2025-06-04";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "ranger";
diff --git a/pkgs/by-name/rd/rdiff-backup/package.nix b/pkgs/by-name/rd/rdiff-backup/package.nix
index a28a8f27ad3b..7045656a10c8 100644
--- a/pkgs/by-name/rd/rdiff-backup/package.nix
+++ b/pkgs/by-name/rd/rdiff-backup/package.nix
@@ -12,6 +12,7 @@ in
 pypkgs.buildPythonApplication rec {
   pname = "rdiff-backup";
   version = "2.2.6";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/re/regexploit/package.nix b/pkgs/by-name/re/regexploit/package.nix
index ac724a52c333..62576425b164 100644
--- a/pkgs/by-name/re/regexploit/package.nix
+++ b/pkgs/by-name/re/regexploit/package.nix
@@ -7,6 +7,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "regexploit";
   version = "1.0.0";
+  format = "setuptools";
 
   disabled = python3.pythonOlder "3.8";
 
diff --git a/pkgs/by-name/re/replacement/package.nix b/pkgs/by-name/re/replacement/package.nix
index 0c72e617ff64..104ad16a2f2f 100644
--- a/pkgs/by-name/re/replacement/package.nix
+++ b/pkgs/by-name/re/replacement/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "replacement";
   version = "0.4.4";
+  format = "setuptools";
 
   disabled = python3Packages.isPy27;
 
diff --git a/pkgs/by-name/re/resolve-march-native/package.nix b/pkgs/by-name/re/resolve-march-native/package.nix
index 950c0642cb99..0c0bd4ee1765 100644
--- a/pkgs/by-name/re/resolve-march-native/package.nix
+++ b/pkgs/by-name/re/resolve-march-native/package.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "resolve-march-native";
   version = "6.0.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "hartwork";
diff --git a/pkgs/by-name/ri/ripe-atlas-tools/package.nix b/pkgs/by-name/ri/ripe-atlas-tools/package.nix
index 31fb70a46782..196b7983e2aa 100644
--- a/pkgs/by-name/ri/ripe-atlas-tools/package.nix
+++ b/pkgs/by-name/ri/ripe-atlas-tools/package.nix
@@ -8,6 +8,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "ripe-atlas-tools";
   version = "3.1.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "RIPE-NCC";
diff --git a/pkgs/by-name/ri/rivalcfg/package.nix b/pkgs/by-name/ri/rivalcfg/package.nix
index efdbfe24a680..669883f0a83b 100644
--- a/pkgs/by-name/ri/rivalcfg/package.nix
+++ b/pkgs/by-name/ri/rivalcfg/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonPackage rec {
   pname = "rivalcfg";
   version = "4.15.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "flozz";
diff --git a/pkgs/by-name/ro/rofi-mpd/package.nix b/pkgs/by-name/ro/rofi-mpd/package.nix
index 2756758e349d..806b6a2169d4 100644
--- a/pkgs/by-name/ro/rofi-mpd/package.nix
+++ b/pkgs/by-name/ro/rofi-mpd/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "rofi-mpd";
   version = "2.2.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "JakeStanger";
diff --git a/pkgs/by-name/ro/rotate-backups/package.nix b/pkgs/by-name/ro/rotate-backups/package.nix
index 70708d123880..83b25bba211d 100644
--- a/pkgs/by-name/ro/rotate-backups/package.nix
+++ b/pkgs/by-name/ro/rotate-backups/package.nix
@@ -7,6 +7,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "rotate-backups";
   version = "8.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "xolox";
diff --git a/pkgs/by-name/s-/s-tui/package.nix b/pkgs/by-name/s-/s-tui/package.nix
index 070b44544dd4..7f50fe06a09f 100644
--- a/pkgs/by-name/s-/s-tui/package.nix
+++ b/pkgs/by-name/s-/s-tui/package.nix
@@ -11,6 +11,7 @@
 python3Packages.buildPythonPackage rec {
   pname = "s-tui";
   version = "1.1.6";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/s4/s4cmd/package.nix b/pkgs/by-name/s4/s4cmd/package.nix
index 0d6686908390..2c2cf486757f 100644
--- a/pkgs/by-name/s4/s4cmd/package.nix
+++ b/pkgs/by-name/s4/s4cmd/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "s4cmd";
   version = "2.1.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/sa/sacad/package.nix b/pkgs/by-name/sa/sacad/package.nix
index 314aee13dec7..5d4ffbf03c0d 100644
--- a/pkgs/by-name/sa/sacad/package.nix
+++ b/pkgs/by-name/sa/sacad/package.nix
@@ -9,6 +9,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "sacad";
   version = "2.8.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/sa/safeeyes/package.nix b/pkgs/by-name/sa/safeeyes/package.nix
index 4400848d7b32..5e87488b9fb2 100644
--- a/pkgs/by-name/sa/safeeyes/package.nix
+++ b/pkgs/by-name/sa/safeeyes/package.nix
@@ -19,6 +19,7 @@ with python3.pkgs;
 buildPythonApplication rec {
   pname = "safeeyes";
   version = "2.2.3";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/sa/sage/python-modules/sage-docbuild.nix b/pkgs/by-name/sa/sage/python-modules/sage-docbuild.nix
index c42277406086..a8e86d173b19 100644
--- a/pkgs/by-name/sa/sage/python-modules/sage-docbuild.nix
+++ b/pkgs/by-name/sa/sage/python-modules/sage-docbuild.nix
@@ -11,6 +11,7 @@
 
 buildPythonPackage rec {
   version = src.version;
+  format = "setuptools";
   pname = "sage-docbuild";
   src = sage-src;
 
diff --git a/pkgs/by-name/sa/sage/python-modules/sage-setup.nix b/pkgs/by-name/sa/sage/python-modules/sage-setup.nix
index c8a3dab56347..66f87dea438c 100644
--- a/pkgs/by-name/sa/sage/python-modules/sage-setup.nix
+++ b/pkgs/by-name/sa/sage/python-modules/sage-setup.nix
@@ -9,6 +9,7 @@
 
 buildPythonPackage rec {
   version = src.version;
+  format = "setuptools";
   pname = "sage-setup";
   src = sage-src;
 
diff --git a/pkgs/by-name/sa/sapling/package.nix b/pkgs/by-name/sa/sapling/package.nix
index a44df071c8de..db73519e3530 100644
--- a/pkgs/by-name/sa/sapling/package.nix
+++ b/pkgs/by-name/sa/sapling/package.nix
@@ -97,6 +97,7 @@ let
 in
 # Builds the main `sl` binary and its Python extensions
 python311Packages.buildPythonApplication {
+  format = "setuptools";
   pname = "sapling";
   inherit src version;
 
diff --git a/pkgs/by-name/sa/sasutils/package.nix b/pkgs/by-name/sa/sasutils/package.nix
index 9ffa2b7ceb66..3d97ef3a1c9f 100644
--- a/pkgs/by-name/sa/sasutils/package.nix
+++ b/pkgs/by-name/sa/sasutils/package.nix
@@ -9,6 +9,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "sasutils";
   version = "0.6.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "stanford-rc";
diff --git a/pkgs/by-name/sa/savepagenow/package.nix b/pkgs/by-name/sa/savepagenow/package.nix
index 89b4f1511381..5875b96cce19 100644
--- a/pkgs/by-name/sa/savepagenow/package.nix
+++ b/pkgs/by-name/sa/savepagenow/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "savepagenow";
   version = "1.1.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "pastpages";
diff --git a/pkgs/by-name/sc/sc-controller/package.nix b/pkgs/by-name/sc/sc-controller/package.nix
index 54247f1569b3..b46df67c167b 100644
--- a/pkgs/by-name/sc/sc-controller/package.nix
+++ b/pkgs/by-name/sc/sc-controller/package.nix
@@ -21,6 +21,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "sc-controller";
   version = "0.5.2";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "C0rn3j";
diff --git a/pkgs/by-name/sc/screenkey/package.nix b/pkgs/by-name/sc/screenkey/package.nix
index 476557f79f33..c5b02d2d8cc0 100644
--- a/pkgs/by-name/sc/screenkey/package.nix
+++ b/pkgs/by-name/sc/screenkey/package.nix
@@ -13,6 +13,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "screenkey";
   version = "1.5";
+  format = "setuptools";
 
   src = fetchFromGitLab {
     owner = "screenkey";
diff --git a/pkgs/by-name/sc/scudcloud/package.nix b/pkgs/by-name/sc/scudcloud/package.nix
index 36764bdb7ab4..f67e236546be 100644
--- a/pkgs/by-name/sc/scudcloud/package.nix
+++ b/pkgs/by-name/sc/scudcloud/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonPackage rec {
   pname = "scudcloud";
   version = "1.65";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "raelgc";
diff --git a/pkgs/by-name/se/searxng/package.nix b/pkgs/by-name/se/searxng/package.nix
index a798b65b2ee7..035bf1c2a8ca 100644
--- a/pkgs/by-name/se/searxng/package.nix
+++ b/pkgs/by-name/se/searxng/package.nix
@@ -39,6 +39,7 @@ python.pkgs.toPythonModule (
   python.pkgs.buildPythonApplication rec {
     pname = "searxng";
     version = "0-unstable-2025-06-28";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "searxng";
diff --git a/pkgs/by-name/se/semiphemeral/package.nix b/pkgs/by-name/se/semiphemeral/package.nix
index 6dbacb7d50d6..2cc721a2228b 100644
--- a/pkgs/by-name/se/semiphemeral/package.nix
+++ b/pkgs/by-name/se/semiphemeral/package.nix
@@ -7,6 +7,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "semiphemeral";
   version = "0.7";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/se/seventeenlands/package.nix b/pkgs/by-name/se/seventeenlands/package.nix
index ab5d25baf31a..649a5280e464 100644
--- a/pkgs/by-name/se/seventeenlands/package.nix
+++ b/pkgs/by-name/se/seventeenlands/package.nix
@@ -6,6 +6,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "seventeenlands";
   version = "0.1.43";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/se/sewer/package.nix b/pkgs/by-name/se/sewer/package.nix
index 41b134e7d61a..17049eb5db10 100644
--- a/pkgs/by-name/se/sewer/package.nix
+++ b/pkgs/by-name/se/sewer/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "sewer";
   version = "0.8.4";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/sf/sftpman/package.nix b/pkgs/by-name/sf/sftpman/package.nix
index e51c6b3e3ed6..26ea3d4b7e40 100644
--- a/pkgs/by-name/sf/sftpman/package.nix
+++ b/pkgs/by-name/sf/sftpman/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "sftpman";
   version = "1.2.2";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "spantaleev";
diff --git a/pkgs/by-name/sn/snapper-gui/package.nix b/pkgs/by-name/sn/snapper-gui/package.nix
index 4255b8caa8d5..f053b72010b7 100644
--- a/pkgs/by-name/sn/snapper-gui/package.nix
+++ b/pkgs/by-name/sn/snapper-gui/package.nix
@@ -14,6 +14,7 @@
 python3Packages.buildPythonApplication {
   pname = "snapper-gui";
   version = "2020-10-20";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "ricardomv";
diff --git a/pkgs/by-name/so/solaar/package.nix b/pkgs/by-name/so/solaar/package.nix
index f9f2348cfe33..01cac2c422f3 100644
--- a/pkgs/by-name/so/solaar/package.nix
+++ b/pkgs/by-name/so/solaar/package.nix
@@ -17,6 +17,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "solaar";
   version = "1.1.14";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "pwr-Solaar";
diff --git a/pkgs/by-name/so/sonata/package.nix b/pkgs/by-name/so/sonata/package.nix
index 477b04a7da6b..46e2504fae87 100644
--- a/pkgs/by-name/so/sonata/package.nix
+++ b/pkgs/by-name/so/sonata/package.nix
@@ -25,6 +25,7 @@ in
 buildPythonApplication rec {
   pname = "sonata";
   version = "1.7.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "multani";
diff --git a/pkgs/by-name/so/soundconverter/package.nix b/pkgs/by-name/so/soundconverter/package.nix
index 450555e22120..c00328903d71 100644
--- a/pkgs/by-name/so/soundconverter/package.nix
+++ b/pkgs/by-name/so/soundconverter/package.nix
@@ -18,6 +18,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "soundconverter";
   version = "4.0.6";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "kassoulet";
diff --git a/pkgs/by-name/sq/sqlite-web/package.nix b/pkgs/by-name/sq/sqlite-web/package.nix
index b379e426f199..6dea15352a99 100644
--- a/pkgs/by-name/sq/sqlite-web/package.nix
+++ b/pkgs/by-name/sq/sqlite-web/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "sqlite-web";
   version = "0.6.4";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/st/steamcontroller/package.nix b/pkgs/by-name/st/steamcontroller/package.nix
index 92f3fcb1aff3..564b04fb4171 100644
--- a/pkgs/by-name/st/steamcontroller/package.nix
+++ b/pkgs/by-name/st/steamcontroller/package.nix
@@ -11,6 +11,7 @@ with python3Packages;
 buildPythonApplication {
   pname = "steamcontroller";
   version = "2017-08-11";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "ynsta";
diff --git a/pkgs/by-name/st/steamos-devkit/package.nix b/pkgs/by-name/st/steamos-devkit/package.nix
index 206619d4e65f..a07321bd5dfa 100644
--- a/pkgs/by-name/st/steamos-devkit/package.nix
+++ b/pkgs/by-name/st/steamos-devkit/package.nix
@@ -13,6 +13,7 @@ let
   pyimgui = python3.pkgs.buildPythonPackage {
     pname = "pyimgui";
     version = "2.0.0";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "pyimgui";
@@ -58,6 +59,7 @@ in
 python3.pkgs.buildPythonPackage rec {
   pname = "steamos-devkit";
   version = "0.20240216.0";
+  format = "setuptools";
 
   src = fetchFromGitLab {
     domain = "gitlab.steamos.cloud";
diff --git a/pkgs/by-name/sy/systemd-wait/package.nix b/pkgs/by-name/sy/systemd-wait/package.nix
index 3d5c37d4751d..d5e054ccb14b 100644
--- a/pkgs/by-name/sy/systemd-wait/package.nix
+++ b/pkgs/by-name/sy/systemd-wait/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication {
   pname = "systemd-wait";
   version = "0.1+2018-10-05";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "Stebalien";
diff --git a/pkgs/by-name/te/tebreak/package.nix b/pkgs/by-name/te/tebreak/package.nix
index 47587b1a8c22..40ad4527916e 100644
--- a/pkgs/by-name/te/tebreak/package.nix
+++ b/pkgs/by-name/te/tebreak/package.nix
@@ -12,6 +12,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "tebreak";
   version = "1.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "adamewing";
diff --git a/pkgs/by-name/te/terminator/package.nix b/pkgs/by-name/te/terminator/package.nix
index ef0f20639709..80ca31f6ccc6 100644
--- a/pkgs/by-name/te/terminator/package.nix
+++ b/pkgs/by-name/te/terminator/package.nix
@@ -17,6 +17,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "terminator";
   version = "2.1.5";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "gnome-terminator";
diff --git a/pkgs/by-name/te/termtekst/package.nix b/pkgs/by-name/te/termtekst/package.nix
index 947ec77b00e8..9605d3097adc 100644
--- a/pkgs/by-name/te/termtekst/package.nix
+++ b/pkgs/by-name/te/termtekst/package.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "termtekst";
   version = "1.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "zevv";
diff --git a/pkgs/by-name/te/termtosvg/package.nix b/pkgs/by-name/te/termtosvg/package.nix
index 8904dc581a14..038168c53a56 100644
--- a/pkgs/by-name/te/termtosvg/package.nix
+++ b/pkgs/by-name/te/termtosvg/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "termtosvg";
   version = "1.1.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/te/textlsp/package.nix b/pkgs/by-name/te/textlsp/package.nix
index 2b6ad6f59bf8..85fc03856816 100644
--- a/pkgs/by-name/te/textlsp/package.nix
+++ b/pkgs/by-name/te/textlsp/package.nix
@@ -6,6 +6,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "textlsp";
   version = "0.3.2";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "hangyav";
diff --git a/pkgs/by-name/th/thonny/package.nix b/pkgs/by-name/th/thonny/package.nix
index d3b15515995b..c99854b9adaa 100644
--- a/pkgs/by-name/th/thonny/package.nix
+++ b/pkgs/by-name/th/thonny/package.nix
@@ -13,6 +13,7 @@ with python3.pkgs;
 buildPythonApplication rec {
   pname = "thonny";
   version = "4.1.7";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "thonny";
diff --git a/pkgs/by-name/ti/tinyprog/package.nix b/pkgs/by-name/ti/tinyprog/package.nix
index 2e2c0776a80e..a57d25473b6f 100644
--- a/pkgs/by-name/ti/tinyprog/package.nix
+++ b/pkgs/by-name/ti/tinyprog/package.nix
@@ -9,6 +9,7 @@ buildPythonApplication rec {
   pname = "tinyprog";
   # `python setup.py --version` from repo checkout
   version = "1.0.24.dev114+g${lib.substring 0 7 src.rev}";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "tinyfpga";
diff --git a/pkgs/by-name/to/tockloader/package.nix b/pkgs/by-name/to/tockloader/package.nix
index b25c57d164a9..5f8f6f710bae 100644
--- a/pkgs/by-name/to/tockloader/package.nix
+++ b/pkgs/by-name/to/tockloader/package.nix
@@ -7,6 +7,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "tockloader";
   version = "1.9.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/to/topydo/package.nix b/pkgs/by-name/to/topydo/package.nix
index 56f5d353f3eb..082b52844ed3 100644
--- a/pkgs/by-name/to/topydo/package.nix
+++ b/pkgs/by-name/to/topydo/package.nix
@@ -9,6 +9,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "topydo";
   version = "0.14";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "topydo";
diff --git a/pkgs/by-name/to/tortoisehg/package.nix b/pkgs/by-name/to/tortoisehg/package.nix
index a9ba14eaa271..5457a5cdfa7b 100644
--- a/pkgs/by-name/to/tortoisehg/package.nix
+++ b/pkgs/by-name/to/tortoisehg/package.nix
@@ -9,6 +9,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "tortoisehg";
   version = "6.9";
+  format = "setuptools";
 
   src = fetchurl {
     url = "https://www.mercurial-scm.org/release/tortoisehg/targz/tortoisehg-${version}.tar.gz";
diff --git a/pkgs/by-name/tr/trash-cli/package.nix b/pkgs/by-name/tr/trash-cli/package.nix
index c0aa05da5e6c..b86a434cb10c 100644
--- a/pkgs/by-name/tr/trash-cli/package.nix
+++ b/pkgs/by-name/tr/trash-cli/package.nix
@@ -9,6 +9,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "trash-cli";
   version = "0.24.5.26";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "andreafrancia";
diff --git a/pkgs/by-name/tu/tuir/package.nix b/pkgs/by-name/tu/tuir/package.nix
index 7d1c87ec7d7f..7570298cb6c8 100644
--- a/pkgs/by-name/tu/tuir/package.nix
+++ b/pkgs/by-name/tu/tuir/package.nix
@@ -8,6 +8,7 @@ with python3Packages;
 buildPythonApplication rec {
   pname = "tuir";
   version = "1.31.0";
+  format = "setuptools";
 
   src = fetchFromGitLab {
     owner = "Chocimier";
diff --git a/pkgs/by-name/tv/tvnamer/package.nix b/pkgs/by-name/tv/tvnamer/package.nix
index bfaafa788a3d..1141a473d643 100644
--- a/pkgs/by-name/tv/tvnamer/package.nix
+++ b/pkgs/by-name/tv/tvnamer/package.nix
@@ -34,6 +34,7 @@ in
 pypkgs.buildPythonApplication rec {
   pname = "tvnamer";
   version = "3.0.4";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/ud/udocker/package.nix b/pkgs/by-name/ud/udocker/package.nix
index 59dda65f70e6..bc87553651ec 100644
--- a/pkgs/by-name/ud/udocker/package.nix
+++ b/pkgs/by-name/ud/udocker/package.nix
@@ -10,6 +10,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "udocker";
   version = "1.3.17";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "indigo-dc";
diff --git a/pkgs/by-name/ul/ulauncher/package.nix b/pkgs/by-name/ul/ulauncher/package.nix
index eecac8ef1aa4..b7b6e1f74baf 100644
--- a/pkgs/by-name/ul/ulauncher/package.nix
+++ b/pkgs/by-name/ul/ulauncher/package.nix
@@ -23,6 +23,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "ulauncher";
   version = "5.15.7";
+  format = "setuptools";
 
   src = fetchurl {
     url = "https://github.com/Ulauncher/Ulauncher/releases/download/${version}/ulauncher_${version}.tar.gz";
diff --git a/pkgs/by-name/un/undervolt/package.nix b/pkgs/by-name/un/undervolt/package.nix
index 57a7cb882855..3b75f468ca08 100644
--- a/pkgs/by-name/un/undervolt/package.nix
+++ b/pkgs/by-name/un/undervolt/package.nix
@@ -6,6 +6,7 @@
 
 python3Packages.buildPythonApplication rec {
   version = "0.4.0";
+  format = "setuptools";
   pname = "undervolt";
 
   src = fetchFromGitHub {
diff --git a/pkgs/by-name/un/unicode-paracode/package.nix b/pkgs/by-name/un/unicode-paracode/package.nix
index f2d6e7cb8d29..148d63f4caef 100644
--- a/pkgs/by-name/un/unicode-paracode/package.nix
+++ b/pkgs/by-name/un/unicode-paracode/package.nix
@@ -10,6 +10,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "unicode";
   version = "2.9";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "garabik";
diff --git a/pkgs/by-name/un/unsilence/package.nix b/pkgs/by-name/un/unsilence/package.nix
index a746adf6bd92..02784951d806 100644
--- a/pkgs/by-name/un/unsilence/package.nix
+++ b/pkgs/by-name/un/unsilence/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonPackage rec {
   pname = "unsilence";
   version = "1.0.9";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "lagmoellertim";
diff --git a/pkgs/by-name/ur/urh/package.nix b/pkgs/by-name/ur/urh/package.nix
index c622dc056390..9a1f64215a74 100644
--- a/pkgs/by-name/ur/urh/package.nix
+++ b/pkgs/by-name/ur/urh/package.nix
@@ -21,6 +21,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "urh";
   version = "2.9.8";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "jopohl";
diff --git a/pkgs/by-name/ur/urlwatch/package.nix b/pkgs/by-name/ur/urlwatch/package.nix
index b484e07e2e5d..d653389865c4 100644
--- a/pkgs/by-name/ur/urlwatch/package.nix
+++ b/pkgs/by-name/ur/urlwatch/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "urlwatch";
   version = "2.29";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "thp";
diff --git a/pkgs/by-name/us/usbrip/package.nix b/pkgs/by-name/us/usbrip/package.nix
index 832c460eacf1..f44552e5c236 100644
--- a/pkgs/by-name/us/usbrip/package.nix
+++ b/pkgs/by-name/us/usbrip/package.nix
@@ -7,6 +7,7 @@
 python3.pkgs.buildPythonApplication {
   pname = "usbrip";
   version = "unstable-2021-07-02";
+  format = "setuptools";
 
   disabled = python3.pythonOlder "3.6";
 
diff --git a/pkgs/by-name/us/usbsdmux/package.nix b/pkgs/by-name/us/usbsdmux/package.nix
index 81f434649690..cbdc49f19418 100644
--- a/pkgs/by-name/us/usbsdmux/package.nix
+++ b/pkgs/by-name/us/usbsdmux/package.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "usbsdmux";
   version = "24.1.1";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/va/vanguards/package.nix b/pkgs/by-name/va/vanguards/package.nix
index 846ea62fa65c..f1b81fc4e699 100644
--- a/pkgs/by-name/va/vanguards/package.nix
+++ b/pkgs/by-name/va/vanguards/package.nix
@@ -6,6 +6,7 @@
 python312Packages.buildPythonApplication {
   pname = "vanguards";
   version = "0.3.1-unstable-2023-10-31";
+  format = "setuptools";
 
   dependencies = [ python312Packages.stem ];
   #tries to access the network during the tests, which fails
diff --git a/pkgs/by-name/va/variety/package.nix b/pkgs/by-name/va/variety/package.nix
index 6e48e01d7e2d..4515739d0598 100644
--- a/pkgs/by-name/va/variety/package.nix
+++ b/pkgs/by-name/va/variety/package.nix
@@ -23,6 +23,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "variety";
   version = "0.8.13";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "varietywalls";
diff --git a/pkgs/by-name/vc/vcstool/package.nix b/pkgs/by-name/vc/vcstool/package.nix
index 0402ca5135e6..1d1ada92230f 100644
--- a/pkgs/by-name/vc/vcstool/package.nix
+++ b/pkgs/by-name/vc/vcstool/package.nix
@@ -12,6 +12,7 @@ with python3Packages;
 buildPythonApplication rec {
   pname = "vcstool";
   version = "0.3.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/vi/vim-vint/package.nix b/pkgs/by-name/vi/vim-vint/package.nix
index 68ceeffa4d82..f1f78a112597 100644
--- a/pkgs/by-name/vi/vim-vint/package.nix
+++ b/pkgs/by-name/vi/vim-vint/package.nix
@@ -9,6 +9,7 @@ with python3Packages;
 buildPythonApplication rec {
   pname = "vim-vint";
   version = "0.3.21";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "Vimjas";
diff --git a/pkgs/by-name/vi/vimiv-qt/package.nix b/pkgs/by-name/vi/vimiv-qt/package.nix
index 854b885788ed..15d19936237f 100644
--- a/pkgs/by-name/vi/vimiv-qt/package.nix
+++ b/pkgs/by-name/vi/vimiv-qt/package.nix
@@ -10,6 +10,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "vimiv-qt";
   version = "0.9.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "karlch";
diff --git a/pkgs/by-name/vi/virtnbdbackup/package.nix b/pkgs/by-name/vi/virtnbdbackup/package.nix
index adbf64aad5ca..6c2ebe4384fa 100644
--- a/pkgs/by-name/vi/virtnbdbackup/package.nix
+++ b/pkgs/by-name/vi/virtnbdbackup/package.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "virtnbdbackup";
   version = "2.29";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "abbbi";
diff --git a/pkgs/by-name/vi/vit/package.nix b/pkgs/by-name/vi/vit/package.nix
index 9febfc8844a5..a78636cfb762 100644
--- a/pkgs/by-name/vi/vit/package.nix
+++ b/pkgs/by-name/vi/vit/package.nix
@@ -11,6 +11,7 @@ with python3Packages;
 buildPythonApplication rec {
   pname = "vit";
   version = "2.3.3";
+  format = "setuptools";
   disabled = lib.versionOlder python.version "3.7";
 
   src = fetchPypi {
diff --git a/pkgs/by-name/vk/vkbasalt-cli/package.nix b/pkgs/by-name/vk/vkbasalt-cli/package.nix
index 2a28cc1551ef..f11a4890f454 100644
--- a/pkgs/by-name/vk/vkbasalt-cli/package.nix
+++ b/pkgs/by-name/vk/vkbasalt-cli/package.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "vkbasalt-cli";
   version = "3.1.1";
+  format = "setuptools";
 
   src = fetchFromGitLab {
     owner = "TheEvilSkeleton";
diff --git a/pkgs/by-name/vo/volctl/package.nix b/pkgs/by-name/vo/volctl/package.nix
index 78b6b6131f41..e1f9438ff115 100644
--- a/pkgs/by-name/vo/volctl/package.nix
+++ b/pkgs/by-name/vo/volctl/package.nix
@@ -14,6 +14,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "volctl";
   version = "0.9.4";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "buzz";
diff --git a/pkgs/by-name/vu/vulnix/package.nix b/pkgs/by-name/vu/vulnix/package.nix
index a31a513a6402..0f79378429e0 100644
--- a/pkgs/by-name/vu/vulnix/package.nix
+++ b/pkgs/by-name/vu/vulnix/package.nix
@@ -9,6 +9,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "vulnix";
   version = "1.11.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "nix-community";
diff --git a/pkgs/by-name/wa/waagent/package.nix b/pkgs/by-name/wa/waagent/package.nix
index ec22ad201ef1..e0537c7afa32 100644
--- a/pkgs/by-name/wa/waagent/package.nix
+++ b/pkgs/by-name/wa/waagent/package.nix
@@ -16,6 +16,7 @@ in
 python.pkgs.buildPythonApplication rec {
   pname = "waagent";
   version = "2.14.0.0";
+  format = "setuptools";
   src = fetchFromGitHub {
     owner = "Azure";
     repo = "WALinuxAgent";
diff --git a/pkgs/by-name/wa/watson/package.nix b/pkgs/by-name/wa/watson/package.nix
index 38ee0e27b87c..0b761f2148a5 100644
--- a/pkgs/by-name/wa/watson/package.nix
+++ b/pkgs/by-name/wa/watson/package.nix
@@ -11,6 +11,7 @@ with python3.pkgs;
 buildPythonApplication rec {
   pname = "watson";
   version = "2.1.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "jazzband";
diff --git a/pkgs/by-name/wa/wayback-machine-archiver/package.nix b/pkgs/by-name/wa/wayback-machine-archiver/package.nix
index cf7e7da82f90..270f44ca8e11 100644
--- a/pkgs/by-name/wa/wayback-machine-archiver/package.nix
+++ b/pkgs/by-name/wa/wayback-machine-archiver/package.nix
@@ -7,6 +7,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "wayback-machine-archiver";
   version = "1.9.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "agude";
diff --git a/pkgs/by-name/wa/waymore/package.nix b/pkgs/by-name/wa/waymore/package.nix
index 155e5c3c97ef..181fd35adc10 100644
--- a/pkgs/by-name/wa/waymore/package.nix
+++ b/pkgs/by-name/wa/waymore/package.nix
@@ -9,6 +9,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "waymore";
   version = "4.7";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "xnl-h4ck3r";
diff --git a/pkgs/by-name/wi/wifite2/package.nix b/pkgs/by-name/wi/wifite2/package.nix
index 9fc4fd21db47..502201ff98ce 100644
--- a/pkgs/by-name/wi/wifite2/package.nix
+++ b/pkgs/by-name/wi/wifite2/package.nix
@@ -29,6 +29,7 @@ in
 python3.pkgs.buildPythonApplication rec {
   pname = "wifite2";
   version = "2.7.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "kimocoder";
diff --git a/pkgs/by-name/wi/win2xcur/package.nix b/pkgs/by-name/wi/win2xcur/package.nix
index 1cd7486439c6..1b75eededa37 100644
--- a/pkgs/by-name/wi/win2xcur/package.nix
+++ b/pkgs/by-name/wi/win2xcur/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonPackage rec {
   pname = "win2xcur";
   version = "0.1.2";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "quantum5";
diff --git a/pkgs/by-name/wl/wlc/package.nix b/pkgs/by-name/wl/wlc/package.nix
index bcd091840c5a..04d734fc0ec1 100644
--- a/pkgs/by-name/wl/wlc/package.nix
+++ b/pkgs/by-name/wl/wlc/package.nix
@@ -9,6 +9,7 @@ with python3.pkgs;
 buildPythonPackage rec {
   pname = "wlc";
   version = "1.15";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/by-name/wl/wllvm/package.nix b/pkgs/by-name/wl/wllvm/package.nix
index a01b20da36c9..bc1c9ebac3e0 100644
--- a/pkgs/by-name/wl/wllvm/package.nix
+++ b/pkgs/by-name/wl/wllvm/package.nix
@@ -6,6 +6,7 @@
 
 python3Packages.buildPythonApplication rec {
   version = "1.3.1";
+  format = "setuptools";
   pname = "wllvm";
 
   src = fetchPypi {
diff --git a/pkgs/by-name/wo/woeusb-ng/package.nix b/pkgs/by-name/wo/woeusb-ng/package.nix
index 408440e0f8be..05b8442b856e 100644
--- a/pkgs/by-name/wo/woeusb-ng/package.nix
+++ b/pkgs/by-name/wo/woeusb-ng/package.nix
@@ -13,6 +13,7 @@ with python3Packages;
 buildPythonApplication rec {
   pname = "woeusb-ng";
   version = "0.2.12";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "WoeUSB";
diff --git a/pkgs/by-name/xb/xborders/package.nix b/pkgs/by-name/xb/xborders/package.nix
index ed5332d99058..72d2c48bdbbe 100644
--- a/pkgs/by-name/xb/xborders/package.nix
+++ b/pkgs/by-name/xb/xborders/package.nix
@@ -13,6 +13,7 @@
 python3Packages.buildPythonPackage rec {
   pname = "xborders";
   version = "3.4"; # in version.txt
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "deter0";
diff --git a/pkgs/by-name/xd/xdxf2slob/package.nix b/pkgs/by-name/xd/xdxf2slob/package.nix
index 6d1ad03f9f87..c694ca396bb6 100644
--- a/pkgs/by-name/xd/xdxf2slob/package.nix
+++ b/pkgs/by-name/xd/xdxf2slob/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication {
   pname = "xdxf2slob";
   version = "unstable-2015-06-30";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "itkach";
diff --git a/pkgs/by-name/xe/xed/package.nix b/pkgs/by-name/xe/xed/package.nix
index a880dbb718e2..e3fea2801bcf 100644
--- a/pkgs/by-name/xe/xed/package.nix
+++ b/pkgs/by-name/xe/xed/package.nix
@@ -13,6 +13,7 @@ let
   mbuild = python3Packages.buildPythonPackage rec {
     pname = "mbuild";
     version = "2024.11.04";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "intelxed";
diff --git a/pkgs/by-name/xe/xenomapper/package.nix b/pkgs/by-name/xe/xenomapper/package.nix
index 1f101fa06e47..5e269bfc91be 100644
--- a/pkgs/by-name/xe/xenomapper/package.nix
+++ b/pkgs/by-name/xe/xenomapper/package.nix
@@ -7,6 +7,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "xenomapper";
   version = "1.0.2";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "genomematt";
diff --git a/pkgs/by-name/xk/xkeysnail/package.nix b/pkgs/by-name/xk/xkeysnail/package.nix
index bfb6e5aa61cb..68ff0ffbc24f 100644
--- a/pkgs/by-name/xk/xkeysnail/package.nix
+++ b/pkgs/by-name/xk/xkeysnail/package.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication {
   pname = "xkeysnail";
   version = "0.4";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "mooz";
diff --git a/pkgs/by-name/xm/xmldiff/package.nix b/pkgs/by-name/xm/xmldiff/package.nix
index 20c03ad733e4..2c68e6b83c1f 100644
--- a/pkgs/by-name/xm/xmldiff/package.nix
+++ b/pkgs/by-name/xm/xmldiff/package.nix
@@ -14,6 +14,7 @@ let
   };
 in
 python3.pkgs.buildPythonApplication {
+  format = "setuptools";
   pname = "xmldiff";
   inherit version src;
 
diff --git a/pkgs/by-name/xo/xonsh/xontribs/xonsh-direnv/default.nix b/pkgs/by-name/xo/xonsh/xontribs/xonsh-direnv/default.nix
index e4122feb09fe..8cba53b3d479 100644
--- a/pkgs/by-name/xo/xonsh/xontribs/xonsh-direnv/default.nix
+++ b/pkgs/by-name/xo/xonsh/xontribs/xonsh-direnv/default.nix
@@ -11,6 +11,7 @@
 buildPythonPackage rec {
   pname = "xonsh-direnv";
   version = "1.6.5";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "74th";
diff --git a/pkgs/by-name/xp/xpra/package.nix b/pkgs/by-name/xp/xpra/package.nix
index 009161e6cf9b..486287a0386b 100644
--- a/pkgs/by-name/xp/xpra/package.nix
+++ b/pkgs/by-name/xp/xpra/package.nix
@@ -90,6 +90,7 @@ in
 buildPythonApplication rec {
   pname = "xpra";
   version = "6.3";
+  format = "setuptools";
 
   stdenv = if withNvenc then cudaPackages.backendStdenv else args.stdenv;
 
diff --git a/pkgs/by-name/ya/yams/package.nix b/pkgs/by-name/ya/yams/package.nix
index 99a964ed6bf4..d5745e2ea7a5 100644
--- a/pkgs/by-name/ya/yams/package.nix
+++ b/pkgs/by-name/ya/yams/package.nix
@@ -8,6 +8,7 @@ python3Packages.buildPythonPackage rec {
   pname = "yams";
   # nixpkgs-update: no auto update
   version = "0.7.3";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "Berulacks";
diff --git a/pkgs/by-name/ye/yewtube/package.nix b/pkgs/by-name/ye/yewtube/package.nix
index 18b3746925ce..718b54237633 100644
--- a/pkgs/by-name/ye/yewtube/package.nix
+++ b/pkgs/by-name/ye/yewtube/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "yewtube";
   version = "2.12.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "mps-youtube";
diff --git a/pkgs/by-name/yt/ytmdl/package.nix b/pkgs/by-name/yt/ytmdl/package.nix
index b73ccd6c8c86..dfbadc146b71 100644
--- a/pkgs/by-name/yt/ytmdl/package.nix
+++ b/pkgs/by-name/yt/ytmdl/package.nix
@@ -9,6 +9,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "ytmdl";
   version = "2023.11.26";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname;
diff --git a/pkgs/by-name/ze/zerobin/package.nix b/pkgs/by-name/ze/zerobin/package.nix
index 5a826ccec891..679aa4ce5e44 100644
--- a/pkgs/by-name/ze/zerobin/package.nix
+++ b/pkgs/by-name/ze/zerobin/package.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "zerobin";
   version = "1.0.5";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "Tygs";
diff --git a/pkgs/by-name/zf/zfs-autobackup/package.nix b/pkgs/by-name/zf/zfs-autobackup/package.nix
index fd1b5e60675d..db4eb62abcbc 100644
--- a/pkgs/by-name/zf/zfs-autobackup/package.nix
+++ b/pkgs/by-name/zf/zfs-autobackup/package.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "zfs-autobackup";
   version = "3.3";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit version;
diff --git a/pkgs/by-name/zi/zim/package.nix b/pkgs/by-name/zi/zim/package.nix
index a44a875af451..28b741256cc8 100644
--- a/pkgs/by-name/zi/zim/package.nix
+++ b/pkgs/by-name/zi/zim/package.nix
@@ -19,6 +19,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "zim";
   version = "0.76.3";
+  format = "setuptools";
 
   src = fetchurl {
     url = "https://zim-wiki.org/downloads/zim-${version}.tar.gz";
diff --git a/pkgs/by-name/zs/zscroll/package.nix b/pkgs/by-name/zs/zscroll/package.nix
index f52784ea8676..e1ba0b454b38 100644
--- a/pkgs/by-name/zs/zscroll/package.nix
+++ b/pkgs/by-name/zs/zscroll/package.nix
@@ -8,6 +8,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "zscroll";
   version = "2.0.1";
+  format = "setuptools";
 
   # don't prefix with python version
   namePrefix = "";
diff --git a/pkgs/desktops/mate/mate-tweak/default.nix b/pkgs/desktops/mate/mate-tweak/default.nix
index e078ebbab7ba..fc627ae2f1b7 100644
--- a/pkgs/desktops/mate/mate-tweak/default.nix
+++ b/pkgs/desktops/mate/mate-tweak/default.nix
@@ -16,6 +16,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "mate-tweak";
   version = "22.10.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "ubuntu-mate";
diff --git a/pkgs/development/embedded/rshell/default.nix b/pkgs/development/embedded/rshell/default.nix
index 6dd6ab79441b..ce9b23c43166 100644
--- a/pkgs/development/embedded/rshell/default.nix
+++ b/pkgs/development/embedded/rshell/default.nix
@@ -9,6 +9,7 @@
 buildPythonApplication rec {
   pname = "rshell";
   version = "0.0.36";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/interpreters/python/mk-python-derivation.nix b/pkgs/development/interpreters/python/mk-python-derivation.nix
index f4c86aa91112..4c1ac3664af4 100644
--- a/pkgs/development/interpreters/python/mk-python-derivation.nix
+++ b/pkgs/development/interpreters/python/mk-python-derivation.nix
@@ -211,7 +211,7 @@ let
         else if format != null then
           format
         else
-          "setuptools";
+          throw "${name} does not configure a `format`. To build with setuptools as before, set `pyproject = true` and `build-system = [ setuptools ]`.`";
 
       withDistOutput = withDistOutput' format';
 
@@ -268,11 +268,12 @@ let
 
       isSetuptoolsDependency = isSetuptoolsDependency' (attrs.pname or null);
 
+      name = namePrefix + attrs.name or "${finalAttrs.pname}-${finalAttrs.version}";
+
     in
     (cleanAttrs attrs)
     // {
-
-      name = namePrefix + attrs.name or "${finalAttrs.pname}-${finalAttrs.version}";
+      inherit name;
 
       inherit catchConflicts;
 
diff --git a/pkgs/development/interpreters/python/tests/test_nix_pythonprefix/typeddep/default.nix b/pkgs/development/interpreters/python/tests/test_nix_pythonprefix/typeddep/default.nix
index d82f4e45cf7b..bd02b0a4a783 100644
--- a/pkgs/development/interpreters/python/tests/test_nix_pythonprefix/typeddep/default.nix
+++ b/pkgs/development/interpreters/python/tests/test_nix_pythonprefix/typeddep/default.nix
@@ -8,6 +8,7 @@ buildPythonPackage {
 
   pname = "typeddep";
   version = "1.3.3.7";
+  format = "setuptools";
 
   src = lib.fileset.toSource {
     root = ./.;
diff --git a/pkgs/development/libraries/cxxtest/default.nix b/pkgs/development/libraries/cxxtest/default.nix
index b33ebe91bece..3b1bffd6ef1e 100644
--- a/pkgs/development/libraries/cxxtest/default.nix
+++ b/pkgs/development/libraries/cxxtest/default.nix
@@ -8,6 +8,7 @@
 buildPythonApplication rec {
   pname = "cxxtest";
   version = "4.4";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "CxxTest";
diff --git a/pkgs/development/libraries/science/chemistry/simple-dftd3/python.nix b/pkgs/development/libraries/science/chemistry/simple-dftd3/python.nix
index 8fe3ef70ef2a..9d10d8e2649e 100644
--- a/pkgs/development/libraries/science/chemistry/simple-dftd3/python.nix
+++ b/pkgs/development/libraries/science/chemistry/simple-dftd3/python.nix
@@ -11,6 +11,7 @@
 }:
 
 buildPythonPackage {
+  format = "setuptools";
   inherit (simple-dftd3)
     pname
     version
diff --git a/pkgs/development/misc/resholve/deps.nix b/pkgs/development/misc/resholve/deps.nix
index 577a6ed1bb90..a37182fca6e1 100644
--- a/pkgs/development/misc/resholve/deps.nix
+++ b/pkgs/development/misc/resholve/deps.nix
@@ -22,6 +22,7 @@ rec {
   configargparse = python27.pkgs.buildPythonPackage rec {
     pname = "configargparse";
     version = "1.5.3";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "bw2";
diff --git a/pkgs/development/misc/resholve/oildev.nix b/pkgs/development/misc/resholve/oildev.nix
index f7d558396cbe..7eb6314a2edc 100644
--- a/pkgs/development/misc/resholve/oildev.nix
+++ b/pkgs/development/misc/resholve/oildev.nix
@@ -22,6 +22,7 @@
   oildev = python27.pkgs.buildPythonPackage rec {
     pname = "oildev-unstable";
     version = "2024-02-26";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "oilshell";
diff --git a/pkgs/development/misc/resholve/resholve.nix b/pkgs/development/misc/resholve/resholve.nix
index 8ae76e373b1d..840293b32640 100644
--- a/pkgs/development/misc/resholve/resholve.nix
+++ b/pkgs/development/misc/resholve/resholve.nix
@@ -18,6 +18,7 @@ let
   sedparse = python27.pkgs.buildPythonPackage {
     pname = "sedparse";
     version = "0.1.2";
+    format = "setuptools";
     src = fetchFromGitHub {
       owner = "aureliojargas";
       repo = "sedparse";
diff --git a/pkgs/development/python-modules/autologging/default.nix b/pkgs/development/python-modules/autologging/default.nix
index 4d58b3d8ab53..f5b490389c3b 100644
--- a/pkgs/development/python-modules/autologging/default.nix
+++ b/pkgs/development/python-modules/autologging/default.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "autologging";
   version = "1.3.2";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "Autologging";
diff --git a/pkgs/development/python-modules/azure-mgmt-appcontainers/default.nix b/pkgs/development/python-modules/azure-mgmt-appcontainers/default.nix
index 9020c2924ed0..7ca15411aa33 100644
--- a/pkgs/development/python-modules/azure-mgmt-appcontainers/default.nix
+++ b/pkgs/development/python-modules/azure-mgmt-appcontainers/default.nix
@@ -13,6 +13,7 @@
 buildPythonPackage rec {
   pname = "azure-mgmt-appcontainers";
   version = "3.2.0";
+  format = "setuptools";
   pyroject = true;
 
   disabled = pythonOlder "3.7";
diff --git a/pkgs/development/python-modules/capstone/4.nix b/pkgs/development/python-modules/capstone/4.nix
index b7c31d336091..5ce7392bc9f8 100644
--- a/pkgs/development/python-modules/capstone/4.nix
+++ b/pkgs/development/python-modules/capstone/4.nix
@@ -8,6 +8,7 @@
 }:
 
 buildPythonPackage {
+  format = "setuptools";
   pname = "capstone";
   inherit (capstone_4) version src;
 
diff --git a/pkgs/development/python-modules/capstone/default.nix b/pkgs/development/python-modules/capstone/default.nix
index e869c9567d63..fb69a60666fe 100644
--- a/pkgs/development/python-modules/capstone/default.nix
+++ b/pkgs/development/python-modules/capstone/default.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "capstone";
   version = lib.getVersion capstone;
+  format = "setuptools";
 
   src = capstone.src;
   sourceRoot = "${src.name}/bindings/python";
diff --git a/pkgs/development/python-modules/casa-formats-io/default.nix b/pkgs/development/python-modules/casa-formats-io/default.nix
index 49f1b18dc8bd..07b54344b6e6 100644
--- a/pkgs/development/python-modules/casa-formats-io/default.nix
+++ b/pkgs/development/python-modules/casa-formats-io/default.nix
@@ -13,6 +13,7 @@
 buildPythonPackage rec {
   pname = "casa-formats-io";
   version = "0.3.0";
+  format = "setuptools";
   prproject = true;
 
   disabled = pythonOlder "3.9";
diff --git a/pkgs/development/python-modules/coapthon3/default.nix b/pkgs/development/python-modules/coapthon3/default.nix
index b565349584b3..0a2d2feb6a88 100644
--- a/pkgs/development/python-modules/coapthon3/default.nix
+++ b/pkgs/development/python-modules/coapthon3/default.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "coapthon3";
   version = "1.0.2";
+  format = "setuptools";
   disabled = isPy27;
 
   src = fetchFromGitHub {
diff --git a/pkgs/development/python-modules/colanderalchemy/default.nix b/pkgs/development/python-modules/colanderalchemy/default.nix
index ca1243078f35..d8da759500d0 100644
--- a/pkgs/development/python-modules/colanderalchemy/default.nix
+++ b/pkgs/development/python-modules/colanderalchemy/default.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "colanderclchemy";
   version = "0.3.4";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python-modules/consul/default.nix b/pkgs/development/python-modules/consul/default.nix
index 56d95aa87d90..a51ed1a5c2e7 100644
--- a/pkgs/development/python-modules/consul/default.nix
+++ b/pkgs/development/python-modules/consul/default.nix
@@ -10,6 +10,7 @@
 buildPythonPackage rec {
   pname = "python-consul";
   version = "1.1.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python-modules/cppheaderparser/default.nix b/pkgs/development/python-modules/cppheaderparser/default.nix
index 80aea1678ae7..e692f2b804bb 100644
--- a/pkgs/development/python-modules/cppheaderparser/default.nix
+++ b/pkgs/development/python-modules/cppheaderparser/default.nix
@@ -8,6 +8,7 @@
 buildPythonPackage rec {
   pname = "cppheaderparser";
   version = "2.7.4";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "CppHeaderParser";
diff --git a/pkgs/development/python-modules/cx-oracle/default.nix b/pkgs/development/python-modules/cx-oracle/default.nix
index aa52a0695abb..def0ce75fac9 100644
--- a/pkgs/development/python-modules/cx-oracle/default.nix
+++ b/pkgs/development/python-modules/cx-oracle/default.nix
@@ -8,6 +8,7 @@
 buildPythonPackage rec {
   pname = "cx-oracle";
   version = "8.3.0";
+  format = "setuptools";
 
   buildInputs = [ odpic ];
 
diff --git a/pkgs/development/python-modules/daff/default.nix b/pkgs/development/python-modules/daff/default.nix
index d5dad88c976b..9c1433c5ed59 100644
--- a/pkgs/development/python-modules/daff/default.nix
+++ b/pkgs/development/python-modules/daff/default.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "daff";
   version = "1.4.2";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python-modules/django-mdeditor/default.nix b/pkgs/development/python-modules/django-mdeditor/default.nix
index a495b41c892d..0a3694201d41 100644
--- a/pkgs/development/python-modules/django-mdeditor/default.nix
+++ b/pkgs/development/python-modules/django-mdeditor/default.nix
@@ -10,6 +10,7 @@ in
 buildPythonPackage {
   pname = "django-mdeditor";
   inherit version;
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "pylixm";
diff --git a/pkgs/development/python-modules/django/3.nix b/pkgs/development/python-modules/django/3.nix
index d8520e33e97c..29f8c4715de4 100644
--- a/pkgs/development/python-modules/django/3.nix
+++ b/pkgs/development/python-modules/django/3.nix
@@ -17,6 +17,7 @@
 buildPythonPackage rec {
   pname = "django";
   version = "3.2.25";
+  format = "setuptools";
 
   disabled = pythonOlder "3.7";
 
diff --git a/pkgs/development/python-modules/dmenu/default.nix b/pkgs/development/python-modules/dmenu/default.nix
index 747c666a9463..aa935b7d2f61 100644
--- a/pkgs/development/python-modules/dmenu/default.nix
+++ b/pkgs/development/python-modules/dmenu/default.nix
@@ -8,6 +8,7 @@
 buildPythonPackage rec {
   pname = "dmenu-python";
   version = "0.2.1";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit version;
diff --git a/pkgs/development/python-modules/docstr-coverage/default.nix b/pkgs/development/python-modules/docstr-coverage/default.nix
index 538e57e9bc6a..7dc9ee26543b 100644
--- a/pkgs/development/python-modules/docstr-coverage/default.nix
+++ b/pkgs/development/python-modules/docstr-coverage/default.nix
@@ -14,6 +14,7 @@ in
 buildPythonPackage {
   pname = "docstr-coverage";
   inherit version;
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "HunterMcGushion";
diff --git a/pkgs/development/python-modules/ecpy/default.nix b/pkgs/development/python-modules/ecpy/default.nix
index 208ff118c83b..da36c1c3c865 100644
--- a/pkgs/development/python-modules/ecpy/default.nix
+++ b/pkgs/development/python-modules/ecpy/default.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "ecpy";
   version = "1.2.5";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "ECPy";
diff --git a/pkgs/development/python-modules/eggdeps/default.nix b/pkgs/development/python-modules/eggdeps/default.nix
index 0b6ef5a6e0a5..9f09f0cdcf0c 100644
--- a/pkgs/development/python-modules/eggdeps/default.nix
+++ b/pkgs/development/python-modules/eggdeps/default.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "tl-eggdeps";
   version = "1.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit version;
diff --git a/pkgs/development/python-modules/eval-type-backport/default.nix b/pkgs/development/python-modules/eval-type-backport/default.nix
index 3451b58340c9..8c952c2867bc 100644
--- a/pkgs/development/python-modules/eval-type-backport/default.nix
+++ b/pkgs/development/python-modules/eval-type-backport/default.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "eval-type-backport";
   version = "0.2.2";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "alexmojaki";
diff --git a/pkgs/development/python-modules/eventkit/default.nix b/pkgs/development/python-modules/eventkit/default.nix
index c9c36d91d534..764c1a1ee1e2 100644
--- a/pkgs/development/python-modules/eventkit/default.nix
+++ b/pkgs/development/python-modules/eventkit/default.nix
@@ -10,6 +10,7 @@ let
   hash = "sha256-mUl/bzxjilD/dhby+M2Iexi7/zdl3BvYaBVU2xRnyTM=";
 in
 buildPythonPackage {
+  format = "setuptools";
   inherit pname version;
 
   src = fetchPypi { inherit pname version hash; };
diff --git a/pkgs/development/python-modules/executor/default.nix b/pkgs/development/python-modules/executor/default.nix
index d20d68984f4c..6a93631fe79b 100644
--- a/pkgs/development/python-modules/executor/default.nix
+++ b/pkgs/development/python-modules/executor/default.nix
@@ -18,6 +18,7 @@
 buildPythonPackage rec {
   pname = "executor";
   version = "23.2";
+  format = "setuptools";
 
   # pipes is removed in python 3.13
   disabled = isPy27 || pythonAtLeast "3.13";
diff --git a/pkgs/development/python-modules/exifread/default.nix b/pkgs/development/python-modules/exifread/default.nix
index 942b5b761abd..a517d5adf55a 100644
--- a/pkgs/development/python-modules/exifread/default.nix
+++ b/pkgs/development/python-modules/exifread/default.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "exifread";
   version = "3.0.0";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "ExifRead";
diff --git a/pkgs/development/python-modules/extractcode/7z.nix b/pkgs/development/python-modules/extractcode/7z.nix
index a9ea8e5f94a2..e9e92e0564c8 100644
--- a/pkgs/development/python-modules/extractcode/7z.nix
+++ b/pkgs/development/python-modules/extractcode/7z.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "extractcode-7z";
   version = "21.5.31";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "aboutcode-org";
diff --git a/pkgs/development/python-modules/extractcode/libarchive.nix b/pkgs/development/python-modules/extractcode/libarchive.nix
index bf4aed064879..1054a42423e9 100644
--- a/pkgs/development/python-modules/extractcode/libarchive.nix
+++ b/pkgs/development/python-modules/extractcode/libarchive.nix
@@ -16,6 +16,7 @@
 buildPythonPackage rec {
   pname = "extractcode-libarchive";
   version = "21.5.31";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "aboutcode-org";
diff --git a/pkgs/development/python-modules/eyed3/default.nix b/pkgs/development/python-modules/eyed3/default.nix
index 7efaaa64937f..be683a9cc0c9 100644
--- a/pkgs/development/python-modules/eyed3/default.nix
+++ b/pkgs/development/python-modules/eyed3/default.nix
@@ -10,6 +10,7 @@
 
 buildPythonPackage rec {
   version = "0.9.7";
+  format = "setuptools";
   pname = "eyeD3";
   disabled = isPyPy;
 
diff --git a/pkgs/development/python-modules/facenet-pytorch/default.nix b/pkgs/development/python-modules/facenet-pytorch/default.nix
index 191818bc6b3d..bfd0ba85a2eb 100644
--- a/pkgs/development/python-modules/facenet-pytorch/default.nix
+++ b/pkgs/development/python-modules/facenet-pytorch/default.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "facenet-pytorch";
   version = "2.5.3";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python-modules/falcon-cors/default.nix b/pkgs/development/python-modules/falcon-cors/default.nix
index b32ff5f4922f..2c70e18821c8 100644
--- a/pkgs/development/python-modules/falcon-cors/default.nix
+++ b/pkgs/development/python-modules/falcon-cors/default.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "falcon-cors";
   version = "1.1.7";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "lwcolton";
diff --git a/pkgs/development/python-modules/fenics/default.nix b/pkgs/development/python-modules/fenics/default.nix
index 1d1f75366d61..a7cea8773bb8 100644
--- a/pkgs/development/python-modules/fenics/default.nix
+++ b/pkgs/development/python-modules/fenics/default.nix
@@ -38,6 +38,7 @@ let
   dijitso = buildPythonPackage {
     pname = "dijitso";
     inherit version;
+    format = "setuptools";
     src = fetchurl {
       url = "https://bitbucket.org/fenics-project/dijitso/downloads/dijitso-${version}.tar.gz";
       sha256 = "1ncgbr0bn5cvv16f13g722a0ipw6p9y6p4iasxjziwsp8kn5x97a";
@@ -66,6 +67,7 @@ let
   fiat = buildPythonPackage {
     pname = "fiat";
     inherit version;
+    format = "setuptools";
     src = fetchurl {
       url = "https://bitbucket.org/fenics-project/fiat/downloads/fiat-${version}.tar.gz";
       sha256 = "1sbi0fbr7w9g9ajr565g3njxrc3qydqjy3334vmz5xg0rd3106il";
@@ -106,6 +108,7 @@ let
   ufl = buildPythonPackage {
     pname = "ufl";
     inherit version;
+    format = "setuptools";
     src = fetchurl {
       url = "https://bitbucket.org/fenics-project/ufl/downloads/ufl-${version}.tar.gz";
       sha256 = "04daxwg4y9c51sdgvwgmlc82nn0fjw7i2vzs15ckdc7dlazmcfi1";
@@ -131,6 +134,7 @@ let
   ffc = buildPythonPackage {
     pname = "ffc";
     inherit version;
+    format = "setuptools";
     src = fetchurl {
       url = "https://bitbucket.org/fenics-project/ffc/downloads/ffc-${version}.tar.gz";
       sha256 = "1zdg6pziss4va74pd7jjl8sc3ya2gmhpypccmyd8p7c66ji23y2g";
@@ -262,6 +266,7 @@ let
   python-dolfin = buildPythonPackage rec {
     pname = "dolfin";
     inherit version;
+    format = "setuptools";
     disabled = isPy27;
     src = dolfin.src;
     sourceRoot = "${pname}-${version}/python";
diff --git a/pkgs/development/python-modules/flake8-class-newline/default.nix b/pkgs/development/python-modules/flake8-class-newline/default.nix
index 8e1b66d22422..56648ea0924f 100644
--- a/pkgs/development/python-modules/flake8-class-newline/default.nix
+++ b/pkgs/development/python-modules/flake8-class-newline/default.nix
@@ -10,6 +10,7 @@
 buildPythonPackage rec {
   pname = "flake8-class-newline";
   version = "1.6.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python-modules/flashinfer/default.nix b/pkgs/development/python-modules/flashinfer/default.nix
index efd7d39bcbcb..430d5254c3e6 100644
--- a/pkgs/development/python-modules/flashinfer/default.nix
+++ b/pkgs/development/python-modules/flashinfer/default.nix
@@ -31,6 +31,7 @@ let
 
 in
 buildPythonPackage {
+  format = "setuptools";
   inherit pname version;
 
   src = fetchFromGitHub {
diff --git a/pkgs/development/python-modules/flask-xml-rpc-re/default.nix b/pkgs/development/python-modules/flask-xml-rpc-re/default.nix
index fd018de05e11..a7ddcae0ae02 100644
--- a/pkgs/development/python-modules/flask-xml-rpc-re/default.nix
+++ b/pkgs/development/python-modules/flask-xml-rpc-re/default.nix
@@ -10,6 +10,7 @@
 buildPythonPackage rec {
   pname = "flask-xml-rpc-re";
   version = "0.2.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "Croydon";
diff --git a/pkgs/development/python-modules/foundationdb/default.nix b/pkgs/development/python-modules/foundationdb/default.nix
index 56d0b7eb9e02..a2fbfb84aec7 100644
--- a/pkgs/development/python-modules/foundationdb/default.nix
+++ b/pkgs/development/python-modules/foundationdb/default.nix
@@ -7,6 +7,7 @@
 buildPythonPackage {
   pname = "foundationdb";
   version = foundationdb.version;
+  format = "setuptools";
 
   src = foundationdb.pythonsrc;
   unpackCmd = "tar xf $curSrc";
diff --git a/pkgs/development/python-modules/foxdot/default.nix b/pkgs/development/python-modules/foxdot/default.nix
index f9faef8be2bd..bbf14af3cb77 100644
--- a/pkgs/development/python-modules/foxdot/default.nix
+++ b/pkgs/development/python-modules/foxdot/default.nix
@@ -10,6 +10,7 @@
 buildPythonPackage rec {
   pname = "foxdot";
   version = "0.8.12";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "FoxDot";
diff --git a/pkgs/development/python-modules/genome-collector/default.nix b/pkgs/development/python-modules/genome-collector/default.nix
index 84f34bedd80e..75d0afc32b79 100644
--- a/pkgs/development/python-modules/genome-collector/default.nix
+++ b/pkgs/development/python-modules/genome-collector/default.nix
@@ -10,6 +10,7 @@
 buildPythonPackage rec {
   pname = "genome_collector";
   version = "0.1.6";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python-modules/genshi/default.nix b/pkgs/development/python-modules/genshi/default.nix
index 78ee38cfa32a..593cde34af38 100644
--- a/pkgs/development/python-modules/genshi/default.nix
+++ b/pkgs/development/python-modules/genshi/default.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "genshi";
   version = "0.7.9";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "Genshi";
diff --git a/pkgs/development/python-modules/gfal2-python/default.nix b/pkgs/development/python-modules/gfal2-python/default.nix
index 03cd735683ca..6f4e9bad548c 100644
--- a/pkgs/development/python-modules/gfal2-python/default.nix
+++ b/pkgs/development/python-modules/gfal2-python/default.nix
@@ -14,6 +14,7 @@
 buildPythonPackage rec {
   pname = "gfal2-python";
   version = "1.13.0";
+  format = "setuptools";
   src = fetchFromGitHub {
     owner = "cern-fts";
     repo = "gfal2-python";
diff --git a/pkgs/development/python-modules/gfal2-util/default.nix b/pkgs/development/python-modules/gfal2-util/default.nix
index 4294aa48b741..e40528ccc9eb 100644
--- a/pkgs/development/python-modules/gfal2-util/default.nix
+++ b/pkgs/development/python-modules/gfal2-util/default.nix
@@ -12,6 +12,7 @@
 (buildPythonPackage rec {
   pname = "gfal2-util";
   version = "1.8.1";
+  format = "setuptools";
   src = fetchFromGitHub {
     owner = "cern-fts";
     repo = "gfal2-util";
diff --git a/pkgs/development/python-modules/gflags/default.nix b/pkgs/development/python-modules/gflags/default.nix
index 7e205f85f881..312822f8de76 100644
--- a/pkgs/development/python-modules/gflags/default.nix
+++ b/pkgs/development/python-modules/gflags/default.nix
@@ -8,6 +8,7 @@
 
 buildPythonPackage rec {
   version = "3.1.2";
+  format = "setuptools";
   pname = "python-gflags";
 
   src = fetchPypi {
diff --git a/pkgs/development/python-modules/greek-accentuation/default.nix b/pkgs/development/python-modules/greek-accentuation/default.nix
index a40448f569a9..7d3e9c681de4 100644
--- a/pkgs/development/python-modules/greek-accentuation/default.nix
+++ b/pkgs/development/python-modules/greek-accentuation/default.nix
@@ -6,6 +6,7 @@
 buildPythonPackage rec {
   pname = "greek-accentuation";
   version = "1.2.0";
+  format = "setuptools";
   src = fetchPypi {
     inherit pname version;
     hash = "sha256-l2HZXdqlLubvy2bWhhZVYGMpF0DXVKTDFehkcGF5xdk=";
diff --git a/pkgs/development/python-modules/heapdict/default.nix b/pkgs/development/python-modules/heapdict/default.nix
index e2a7aa3ed44c..74676a41f3fa 100644
--- a/pkgs/development/python-modules/heapdict/default.nix
+++ b/pkgs/development/python-modules/heapdict/default.nix
@@ -8,6 +8,7 @@
 buildPythonPackage rec {
   pname = "heapdict";
   version = "1.0.1";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "HeapDict";
diff --git a/pkgs/development/python-modules/hikari/default.nix b/pkgs/development/python-modules/hikari/default.nix
index 882652fd6ac7..7be50c2b2d2b 100644
--- a/pkgs/development/python-modules/hikari/default.nix
+++ b/pkgs/development/python-modules/hikari/default.nix
@@ -17,6 +17,7 @@
 buildPythonPackage rec {
   pname = "hikari";
   version = "2.1.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "hikari-py";
diff --git a/pkgs/development/python-modules/interegular/default.nix b/pkgs/development/python-modules/interegular/default.nix
index 5e61db9b2b91..6ca3cd0c4959 100644
--- a/pkgs/development/python-modules/interegular/default.nix
+++ b/pkgs/development/python-modules/interegular/default.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "interegular";
   version = "0.3.3";
+  format = "setuptools";
   src = fetchPypi {
     inherit pname version;
     hash = "sha256-2baXshs0iEcROZug8DdpFLgYmc5nADJIbQ0Eg0SnZgA=";
diff --git a/pkgs/development/python-modules/jenkins-job-builder/default.nix b/pkgs/development/python-modules/jenkins-job-builder/default.nix
index 5bfe04b9e574..3f4c2cb1fc92 100644
--- a/pkgs/development/python-modules/jenkins-job-builder/default.nix
+++ b/pkgs/development/python-modules/jenkins-job-builder/default.nix
@@ -19,6 +19,7 @@
 buildPythonPackage rec {
   pname = "jenkins-job-builder";
   version = "6.4.2";
+  format = "setuptools";
 
   build-system = [ setuptools ];
 
diff --git a/pkgs/development/python-modules/jsonpath-rw/default.nix b/pkgs/development/python-modules/jsonpath-rw/default.nix
index 7a7f07f063b4..736283bf04c2 100644
--- a/pkgs/development/python-modules/jsonpath-rw/default.nix
+++ b/pkgs/development/python-modules/jsonpath-rw/default.nix
@@ -11,6 +11,7 @@
 buildPythonPackage rec {
   pname = "jsonpath-rw";
   version = "1.4.0";
+  format = "setuptools";
   disabled = isPyPy;
 
   src = fetchPypi {
diff --git a/pkgs/development/python-modules/keyrings-passwordstore/default.nix b/pkgs/development/python-modules/keyrings-passwordstore/default.nix
index 43f35253ddfc..9acd515ce4fe 100644
--- a/pkgs/development/python-modules/keyrings-passwordstore/default.nix
+++ b/pkgs/development/python-modules/keyrings-passwordstore/default.nix
@@ -11,6 +11,7 @@
 buildPythonPackage rec {
   pname = "keyrings.passwordstore";
   version = "0.1.0";
+  format = "setuptools";
   disabled = pythonOlder "3.6";
 
   src = fetchPypi {
diff --git a/pkgs/development/python-modules/lammps/default.nix b/pkgs/development/python-modules/lammps/default.nix
index 1267792855b0..b28d3bd88a9e 100644
--- a/pkgs/development/python-modules/lammps/default.nix
+++ b/pkgs/development/python-modules/lammps/default.nix
@@ -9,6 +9,7 @@ let
   LAMMPS_SHARED_LIB = "${lib.getLib lammps}/lib/liblammps${stdenv.hostPlatform.extensions.library}";
 in
 buildPythonPackage {
+  format = "setuptools";
   inherit (lammps) pname version src;
 
   env = {
diff --git a/pkgs/development/python-modules/libasyncns/default.nix b/pkgs/development/python-modules/libasyncns/default.nix
index b81e67f8f926..3d2b3fb20599 100644
--- a/pkgs/development/python-modules/libasyncns/default.nix
+++ b/pkgs/development/python-modules/libasyncns/default.nix
@@ -10,6 +10,7 @@
 buildPythonPackage rec {
   pname = "libasyncns-python";
   version = "0.7.1";
+  format = "setuptools";
 
   src = fetchurl {
     url = "https://launchpad.net/libasyncns-python/trunk/${version}/+download/libasyncns-python-${version}.tar.bz2";
diff --git a/pkgs/development/python-modules/liblzfse/default.nix b/pkgs/development/python-modules/liblzfse/default.nix
index f88a096459ee..9967a48934e5 100644
--- a/pkgs/development/python-modules/liblzfse/default.nix
+++ b/pkgs/development/python-modules/liblzfse/default.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "pyliblzfse";
   version = "0.4.1";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python-modules/logging-tree/default.nix b/pkgs/development/python-modules/logging-tree/default.nix
index 884b0056f371..cf6d359c3ee6 100644
--- a/pkgs/development/python-modules/logging-tree/default.nix
+++ b/pkgs/development/python-modules/logging-tree/default.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "logging-tree";
   version = "1.10";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "brandon-rhodes";
diff --git a/pkgs/development/python-modules/macfsevents/default.nix b/pkgs/development/python-modules/macfsevents/default.nix
index 65a086fae242..b8b4a57ca15f 100644
--- a/pkgs/development/python-modules/macfsevents/default.nix
+++ b/pkgs/development/python-modules/macfsevents/default.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "macfsevents";
   version = "0.8.4";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "MacFSEvents";
diff --git a/pkgs/development/python-modules/magic/default.nix b/pkgs/development/python-modules/magic/default.nix
index b37f0d604cf3..adfad7f727a9 100644
--- a/pkgs/development/python-modules/magic/default.nix
+++ b/pkgs/development/python-modules/magic/default.nix
@@ -6,6 +6,7 @@
 }:
 
 buildPythonPackage {
+  format = "setuptools";
   inherit (pkgs.file) pname version src;
 
   patchPhase = ''
diff --git a/pkgs/development/python-modules/marionette-harness/manifestparser.nix b/pkgs/development/python-modules/marionette-harness/manifestparser.nix
index 57f8fbf01254..e43995df4fd5 100644
--- a/pkgs/development/python-modules/marionette-harness/manifestparser.nix
+++ b/pkgs/development/python-modules/marionette-harness/manifestparser.nix
@@ -8,6 +8,7 @@
 buildPythonPackage rec {
   pname = "manifestparser";
   version = "1.1";
+  format = "setuptools";
 
   disabled = isPy3k;
 
diff --git a/pkgs/development/python-modules/material-color-utilities/default.nix b/pkgs/development/python-modules/material-color-utilities/default.nix
index 4da3d1907e5d..64d6cf576b56 100644
--- a/pkgs/development/python-modules/material-color-utilities/default.nix
+++ b/pkgs/development/python-modules/material-color-utilities/default.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "material-color-utilities-python";
   version = "0.1.5";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python-modules/mediafire-dl/default.nix b/pkgs/development/python-modules/mediafire-dl/default.nix
index 3598ff215df7..86c1f341a569 100644
--- a/pkgs/development/python-modules/mediafire-dl/default.nix
+++ b/pkgs/development/python-modules/mediafire-dl/default.nix
@@ -10,6 +10,7 @@
 buildPythonPackage {
   pname = "mediafire-dl";
   version = "unstable-2023-09-07";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "Juvenal-Yescas";
diff --git a/pkgs/development/python-modules/meshlabxml/default.nix b/pkgs/development/python-modules/meshlabxml/default.nix
index 5f62a773a3d1..f3ed182c0515 100644
--- a/pkgs/development/python-modules/meshlabxml/default.nix
+++ b/pkgs/development/python-modules/meshlabxml/default.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "meshlabxml";
   version = "2018.3";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "MeshLabXML";
diff --git a/pkgs/development/python-modules/midiutil/default.nix b/pkgs/development/python-modules/midiutil/default.nix
index 17e99c731a8f..82a4464b07fc 100644
--- a/pkgs/development/python-modules/midiutil/default.nix
+++ b/pkgs/development/python-modules/midiutil/default.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "midiutil";
   version = "1.2.1";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "MIDIUtil";
diff --git a/pkgs/development/python-modules/mkdocs-macros/default.nix b/pkgs/development/python-modules/mkdocs-macros/default.nix
index bc73fe8848e1..1cece8c6212b 100644
--- a/pkgs/development/python-modules/mkdocs-macros/default.nix
+++ b/pkgs/development/python-modules/mkdocs-macros/default.nix
@@ -13,6 +13,7 @@
 buildPythonPackage rec {
   pname = "mkdocs-macros-plugin";
   version = "1.0.5";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python-modules/mkdocs-macros/mkdocs-macros-test.nix b/pkgs/development/python-modules/mkdocs-macros/mkdocs-macros-test.nix
index 75e935d9469c..45c83437d540 100644
--- a/pkgs/development/python-modules/mkdocs-macros/mkdocs-macros-test.nix
+++ b/pkgs/development/python-modules/mkdocs-macros/mkdocs-macros-test.nix
@@ -8,6 +8,7 @@
 buildPythonPackage rec {
   pname = "mkdocs-macros-test";
   version = "0.1.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python-modules/mouseinfo/default.nix b/pkgs/development/python-modules/mouseinfo/default.nix
index 9691fc36680b..8ae77f3f5612 100644
--- a/pkgs/development/python-modules/mouseinfo/default.nix
+++ b/pkgs/development/python-modules/mouseinfo/default.nix
@@ -9,6 +9,7 @@
 buildPythonPackage {
   pname = "mouseinfo";
   version = "0.1.3";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "asweigart";
diff --git a/pkgs/development/python-modules/mutatormath/default.nix b/pkgs/development/python-modules/mutatormath/default.nix
index 1b259cd6ebd0..ce5f8d0a522c 100644
--- a/pkgs/development/python-modules/mutatormath/default.nix
+++ b/pkgs/development/python-modules/mutatormath/default.nix
@@ -11,6 +11,7 @@
 buildPythonPackage rec {
   pname = "mutatormath";
   version = "3.0.1";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "MutatorMath";
diff --git a/pkgs/development/python-modules/nevow/default.nix b/pkgs/development/python-modules/nevow/default.nix
index 65350eb230b1..04ada67634ca 100644
--- a/pkgs/development/python-modules/nevow/default.nix
+++ b/pkgs/development/python-modules/nevow/default.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "nevow";
   version = "0.14.5";
+  format = "setuptools";
   disabled = isPy3k;
 
   src = fetchPypi {
diff --git a/pkgs/development/python-modules/newspaper3k/default.nix b/pkgs/development/python-modules/newspaper3k/default.nix
index d3db2a05831a..bfb26ae40d9e 100644
--- a/pkgs/development/python-modules/newspaper3k/default.nix
+++ b/pkgs/development/python-modules/newspaper3k/default.nix
@@ -15,6 +15,7 @@
 buildPythonPackage rec {
   pname = "newspaper3k";
   version = "0.2.8";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python-modules/nimfa/default.nix b/pkgs/development/python-modules/nimfa/default.nix
index 3715f0172775..b2009ba24b7d 100644
--- a/pkgs/development/python-modules/nimfa/default.nix
+++ b/pkgs/development/python-modules/nimfa/default.nix
@@ -12,6 +12,7 @@
 buildPythonPackage rec {
   pname = "nimfa";
   version = "1.4.0";
+  format = "setuptools";
   setuptools = true;
 
   src = fetchPypi {
diff --git a/pkgs/development/python-modules/oncalendar/default.nix b/pkgs/development/python-modules/oncalendar/default.nix
index f06888ff566f..2a38ae073245 100644
--- a/pkgs/development/python-modules/oncalendar/default.nix
+++ b/pkgs/development/python-modules/oncalendar/default.nix
@@ -8,6 +8,7 @@
 buildPythonPackage rec {
   pname = "oncalendar";
   version = "1.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "cuu508";
diff --git a/pkgs/development/python-modules/openbabel-bindings/default.nix b/pkgs/development/python-modules/openbabel-bindings/default.nix
index 24fb1677de36..ee256647776e 100644
--- a/pkgs/development/python-modules/openbabel-bindings/default.nix
+++ b/pkgs/development/python-modules/openbabel-bindings/default.nix
@@ -6,6 +6,7 @@
 }:
 
 buildPythonPackage {
+  format = "setuptools";
   inherit (openbabel) pname version;
 
   src = "${openbabel}/${python.sitePackages}";
diff --git a/pkgs/development/python-modules/optax/tests.nix b/pkgs/development/python-modules/optax/tests.nix
index ae5c8fe6d441..bc2b57cb5c2c 100644
--- a/pkgs/development/python-modules/optax/tests.nix
+++ b/pkgs/development/python-modules/optax/tests.nix
@@ -10,6 +10,7 @@
 }:
 
 buildPythonPackage {
+  format = "setuptools";
   pname = "optax-tests";
   inherit (optax) version;
 
diff --git a/pkgs/development/python-modules/oslo-metrics/default.nix b/pkgs/development/python-modules/oslo-metrics/default.nix
index 258838bf591c..41371f0f864f 100644
--- a/pkgs/development/python-modules/oslo-metrics/default.nix
+++ b/pkgs/development/python-modules/oslo-metrics/default.nix
@@ -20,6 +20,7 @@
 buildPythonPackage rec {
   pname = "oslo-metrics";
   version = "0.11.0";
+  format = "setuptools";
 
   src = fetchFromGitea {
     domain = "opendev.org";
diff --git a/pkgs/development/python-modules/outcome/default.nix b/pkgs/development/python-modules/outcome/default.nix
index e0e98cee8872..ff3de95d32e7 100644
--- a/pkgs/development/python-modules/outcome/default.nix
+++ b/pkgs/development/python-modules/outcome/default.nix
@@ -10,6 +10,7 @@
 buildPythonPackage rec {
   pname = "outcome";
   version = "1.3.0.post0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python-modules/parallel-ssh/default.nix b/pkgs/development/python-modules/parallel-ssh/default.nix
index cf73fe716fb8..a98411d293bd 100644
--- a/pkgs/development/python-modules/parallel-ssh/default.nix
+++ b/pkgs/development/python-modules/parallel-ssh/default.nix
@@ -12,6 +12,7 @@
 buildPythonPackage rec {
   pname = "parallel-ssh";
   version = "2.14.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "ParallelSSH";
diff --git a/pkgs/development/python-modules/parsley/default.nix b/pkgs/development/python-modules/parsley/default.nix
index 7da4675609d4..0e5c95c928e6 100644
--- a/pkgs/development/python-modules/parsley/default.nix
+++ b/pkgs/development/python-modules/parsley/default.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "parsley";
   version = "1.3";
+  format = "setuptools";
   src = fetchPypi {
     pname = "Parsley";
     inherit version;
diff --git a/pkgs/development/python-modules/pip-install-test/default.nix b/pkgs/development/python-modules/pip-install-test/default.nix
index 81b596ac3fe9..6bc939c82f3d 100644
--- a/pkgs/development/python-modules/pip-install-test/default.nix
+++ b/pkgs/development/python-modules/pip-install-test/default.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "pip-install-test";
   version = "0.5";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python-modules/pipetools/default.nix b/pkgs/development/python-modules/pipetools/default.nix
index e6316aad4b43..fb45e2a7248d 100644
--- a/pkgs/development/python-modules/pipetools/default.nix
+++ b/pkgs/development/python-modules/pipetools/default.nix
@@ -9,6 +9,7 @@
 buildPythonPackage {
   pname = "pipetools";
   version = "1.1.0";
+  format = "setuptools";
 
   # Used github as the src since the pypi package does not include the tests
   src = fetchFromGitHub {
diff --git a/pkgs/development/python-modules/plugp100/default.nix b/pkgs/development/python-modules/plugp100/default.nix
index 29963f6e968d..2164b86790bc 100644
--- a/pkgs/development/python-modules/plugp100/default.nix
+++ b/pkgs/development/python-modules/plugp100/default.nix
@@ -19,6 +19,7 @@
 buildPythonPackage rec {
   pname = "plugp100";
   version = "5.1.4";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "petretiandrea";
diff --git a/pkgs/development/python-modules/plyplus/default.nix b/pkgs/development/python-modules/plyplus/default.nix
index 53761eb0a4d0..d41f45b528cb 100644
--- a/pkgs/development/python-modules/plyplus/default.nix
+++ b/pkgs/development/python-modules/plyplus/default.nix
@@ -8,6 +8,7 @@
 buildPythonPackage rec {
   pname = "plyplus";
   version = "0.7.5";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "PlyPlus";
diff --git a/pkgs/development/python-modules/polars/default.nix b/pkgs/development/python-modules/polars/default.nix
index c2dafd53a442..1b55b61a9cc4 100644
--- a/pkgs/development/python-modules/polars/default.nix
+++ b/pkgs/development/python-modules/polars/default.nix
@@ -50,6 +50,7 @@ in
 buildPythonPackage rec {
   pname = "polars";
   inherit version;
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "pola-rs";
diff --git a/pkgs/development/python-modules/potr/default.nix b/pkgs/development/python-modules/potr/default.nix
index fcf1f4e0701d..87985aa0ef27 100644
--- a/pkgs/development/python-modules/potr/default.nix
+++ b/pkgs/development/python-modules/potr/default.nix
@@ -8,6 +8,7 @@
 buildPythonPackage rec {
   pname = "python-potr";
   version = "1.0.2";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python-modules/protobuf/3.nix b/pkgs/development/python-modules/protobuf/3.nix
index 08bf15d93fb5..c1d1e8cfe05e 100644
--- a/pkgs/development/python-modules/protobuf/3.nix
+++ b/pkgs/development/python-modules/protobuf/3.nix
@@ -16,6 +16,7 @@ buildPythonPackage {
   inherit (protobuf) pname src;
 
   version = protobuf.version;
+  format = "setuptools";
 
   sourceRoot = "${protobuf.src.name}/python";
 
diff --git a/pkgs/development/python-modules/pure-sasl/default.nix b/pkgs/development/python-modules/pure-sasl/default.nix
index 5b22becc77da..6e76ecb7dd61 100644
--- a/pkgs/development/python-modules/pure-sasl/default.nix
+++ b/pkgs/development/python-modules/pure-sasl/default.nix
@@ -10,6 +10,7 @@
 buildPythonPackage rec {
   pname = "pure-sasl";
   version = "0.6.2";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "thobbs";
diff --git a/pkgs/development/python-modules/py-deprecate/default.nix b/pkgs/development/python-modules/py-deprecate/default.nix
index c6c2c62ee041..53fcfe049f14 100644
--- a/pkgs/development/python-modules/py-deprecate/default.nix
+++ b/pkgs/development/python-modules/py-deprecate/default.nix
@@ -9,10 +9,10 @@
 let
   pname = "py-deprecate";
   version = "0.3.2";
-  format = "setuptools";
 in
 buildPythonPackage {
   inherit pname version;
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "Borda";
diff --git a/pkgs/development/python-modules/py-scrypt/default.nix b/pkgs/development/python-modules/py-scrypt/default.nix
index 10b9ec015050..bf2bf239145a 100644
--- a/pkgs/development/python-modules/py-scrypt/default.nix
+++ b/pkgs/development/python-modules/py-scrypt/default.nix
@@ -8,6 +8,7 @@
 buildPythonPackage rec {
   pname = "py-scrypt";
   version = "0.8.27";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "scrypt";
diff --git a/pkgs/development/python-modules/pyahocorasick/default.nix b/pkgs/development/python-modules/pyahocorasick/default.nix
index 8ed4bf2659ac..a394e038063c 100644
--- a/pkgs/development/python-modules/pyahocorasick/default.nix
+++ b/pkgs/development/python-modules/pyahocorasick/default.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "pyahocorasick";
   version = "2.2.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "WojciechMula";
diff --git a/pkgs/development/python-modules/pyaudio/default.nix b/pkgs/development/python-modules/pyaudio/default.nix
index d6d2749d6034..7e98869dfc84 100644
--- a/pkgs/development/python-modules/pyaudio/default.nix
+++ b/pkgs/development/python-modules/pyaudio/default.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "pyaudio";
   version = "0.2.14";
+  format = "setuptools";
   disabled = isPyPy;
 
   src = fetchPypi {
diff --git a/pkgs/development/python-modules/pycategories/infix.nix b/pkgs/development/python-modules/pycategories/infix.nix
index e3c09476b401..d5959c1a0ec1 100644
--- a/pkgs/development/python-modules/pycategories/infix.nix
+++ b/pkgs/development/python-modules/pycategories/infix.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "infix";
   version = "1.2";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python-modules/pycrc/default.nix b/pkgs/development/python-modules/pycrc/default.nix
index 146f0bf2600e..b1ec71c1f443 100644
--- a/pkgs/development/python-modules/pycrc/default.nix
+++ b/pkgs/development/python-modules/pycrc/default.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "pycrc";
   version = "1.21";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "PyCRC";
diff --git a/pkgs/development/python-modules/pycycling/default.nix b/pkgs/development/python-modules/pycycling/default.nix
index 86f1ddb0b925..b324c923ebc0 100644
--- a/pkgs/development/python-modules/pycycling/default.nix
+++ b/pkgs/development/python-modules/pycycling/default.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "pycycling";
   version = "0.4.1";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python-modules/pyfdt/default.nix b/pkgs/development/python-modules/pyfdt/default.nix
index e5f523188dec..58970d022f32 100644
--- a/pkgs/development/python-modules/pyfdt/default.nix
+++ b/pkgs/development/python-modules/pyfdt/default.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "pyfdt";
   version = "0.3";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit version;
diff --git a/pkgs/development/python-modules/pygetwindow/default.nix b/pkgs/development/python-modules/pygetwindow/default.nix
index 238bffdeb276..ec4328b262f2 100644
--- a/pkgs/development/python-modules/pygetwindow/default.nix
+++ b/pkgs/development/python-modules/pygetwindow/default.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "pygetwindow";
   version = "0.0.9";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "PyGetWindow";
diff --git a/pkgs/development/python-modules/pyipv8/default.nix b/pkgs/development/python-modules/pyipv8/default.nix
index ad57f8ab09cd..cca3f6fef912 100644
--- a/pkgs/development/python-modules/pyipv8/default.nix
+++ b/pkgs/development/python-modules/pyipv8/default.nix
@@ -17,6 +17,7 @@
 buildPythonPackage rec {
   pname = "pyipv8";
   version = "3.0.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python-modules/pymorphy2/dicts-ru.nix b/pkgs/development/python-modules/pymorphy2/dicts-ru.nix
index 438599051876..2bab523c30c1 100644
--- a/pkgs/development/python-modules/pymorphy2/dicts-ru.nix
+++ b/pkgs/development/python-modules/pymorphy2/dicts-ru.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "pymorphy2-dicts-ru";
   version = "2.4.417127.4579844";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python-modules/pymorphy3/dicts-ru.nix b/pkgs/development/python-modules/pymorphy3/dicts-ru.nix
index 6206a0cfe472..83a91b0f6aae 100644
--- a/pkgs/development/python-modules/pymorphy3/dicts-ru.nix
+++ b/pkgs/development/python-modules/pymorphy3/dicts-ru.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "pymorphy3-dicts-ru";
   version = "2.4.417150.4580142";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python-modules/pymorphy3/dicts-uk.nix b/pkgs/development/python-modules/pymorphy3/dicts-uk.nix
index 62260cbc262d..9a755f1559d7 100644
--- a/pkgs/development/python-modules/pymorphy3/dicts-uk.nix
+++ b/pkgs/development/python-modules/pymorphy3/dicts-uk.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "pymorphy3-dicts-uk";
   version = "2.4.1.1.1663094765";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python-modules/pymsgbox/default.nix b/pkgs/development/python-modules/pymsgbox/default.nix
index d33838cf5c84..c4d52a900851 100644
--- a/pkgs/development/python-modules/pymsgbox/default.nix
+++ b/pkgs/development/python-modules/pymsgbox/default.nix
@@ -8,6 +8,7 @@
 buildPythonPackage rec {
   pname = "pymsgbox";
   version = "1.0.9";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "PyMsgBox";
diff --git a/pkgs/development/python-modules/pymysqlsa/default.nix b/pkgs/development/python-modules/pymysqlsa/default.nix
index 9d1609d506ca..53ec483536af 100644
--- a/pkgs/development/python-modules/pymysqlsa/default.nix
+++ b/pkgs/development/python-modules/pymysqlsa/default.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "pymysql-sa";
   version = "1.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit version;
diff --git a/pkgs/development/python-modules/pynamecheap/default.nix b/pkgs/development/python-modules/pynamecheap/default.nix
index adf63d29af72..658ff62a5d26 100644
--- a/pkgs/development/python-modules/pynamecheap/default.nix
+++ b/pkgs/development/python-modules/pynamecheap/default.nix
@@ -8,6 +8,7 @@
 buildPythonPackage rec {
   pname = "pynamecheap";
   version = "0.0.3";
+  format = "setuptools";
 
   propagatedBuildInputs = [ requests ];
 
diff --git a/pkgs/development/python-modules/pyogg/default.nix b/pkgs/development/python-modules/pyogg/default.nix
index 220777cd3609..17d77256ce67 100644
--- a/pkgs/development/python-modules/pyogg/default.nix
+++ b/pkgs/development/python-modules/pyogg/default.nix
@@ -14,6 +14,7 @@
 buildPythonPackage rec {
   pname = "pyogg";
   version = "0.6.14a1";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "PyOgg";
diff --git a/pkgs/development/python-modules/pyplatec/default.nix b/pkgs/development/python-modules/pyplatec/default.nix
index 486b980bd4cb..360a45925256 100644
--- a/pkgs/development/python-modules/pyplatec/default.nix
+++ b/pkgs/development/python-modules/pyplatec/default.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "pyplatec";
   version = "1.4.0";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "PyPlatec";
diff --git a/pkgs/development/python-modules/pyprind/default.nix b/pkgs/development/python-modules/pyprind/default.nix
index 9506f4c24218..3f8b8cf5b895 100644
--- a/pkgs/development/python-modules/pyprind/default.nix
+++ b/pkgs/development/python-modules/pyprind/default.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "pyprind";
   version = "2.11.3";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "PyPrind";
diff --git a/pkgs/development/python-modules/pyqrcode/default.nix b/pkgs/development/python-modules/pyqrcode/default.nix
index c624964eecf3..0e56354a96dc 100644
--- a/pkgs/development/python-modules/pyqrcode/default.nix
+++ b/pkgs/development/python-modules/pyqrcode/default.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "pyqrcode";
   version = "1.2.1";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "PyQRCode";
diff --git a/pkgs/development/python-modules/pyqt/pyqt6-sip.nix b/pkgs/development/python-modules/pyqt/pyqt6-sip.nix
index e4b6c28d8b53..6dd6a350ffea 100644
--- a/pkgs/development/python-modules/pyqt/pyqt6-sip.nix
+++ b/pkgs/development/python-modules/pyqt/pyqt6-sip.nix
@@ -8,6 +8,7 @@
 buildPythonPackage rec {
   pname = "pyqt6-sip";
   version = "13.8.0";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "PyQt6_sip";
diff --git a/pkgs/development/python-modules/pyqt/sip.nix b/pkgs/development/python-modules/pyqt/sip.nix
index d5195eac8466..a9e1a0644adf 100644
--- a/pkgs/development/python-modules/pyqt/sip.nix
+++ b/pkgs/development/python-modules/pyqt/sip.nix
@@ -8,6 +8,7 @@
 buildPythonPackage rec {
   pname = "pyqt5-sip";
   version = "12.17.0";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "pyqt5_sip";
diff --git a/pkgs/development/python-modules/pysc2/default.nix b/pkgs/development/python-modules/pysc2/default.nix
index ce2f3a9df8ee..307bff567d3b 100644
--- a/pkgs/development/python-modules/pysc2/default.nix
+++ b/pkgs/development/python-modules/pysc2/default.nix
@@ -19,6 +19,7 @@
 buildPythonPackage rec {
   pname = "pysc2";
   version = "4.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "deepmind";
diff --git a/pkgs/development/python-modules/pyscreeze/default.nix b/pkgs/development/python-modules/pyscreeze/default.nix
index dfcf654cc0f7..d1cd454b9ccd 100644
--- a/pkgs/development/python-modules/pyscreeze/default.nix
+++ b/pkgs/development/python-modules/pyscreeze/default.nix
@@ -10,6 +10,7 @@
 buildPythonPackage {
   pname = "pyscreeze";
   version = "0.1.26";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "asweigart";
diff --git a/pkgs/development/python-modules/pyscss/default.nix b/pkgs/development/python-modules/pyscss/default.nix
index 11445c064c06..03602dc94d54 100644
--- a/pkgs/development/python-modules/pyscss/default.nix
+++ b/pkgs/development/python-modules/pyscss/default.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "pyscss";
   version = "1.4.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     repo = "pyScss";
diff --git a/pkgs/development/python-modules/pyspice/default.nix b/pkgs/development/python-modules/pyspice/default.nix
index c88331be6880..b9419aeeb7dc 100644
--- a/pkgs/development/python-modules/pyspice/default.nix
+++ b/pkgs/development/python-modules/pyspice/default.nix
@@ -18,6 +18,7 @@
 buildPythonPackage rec {
   pname = "pyspice";
   version = "1.5";
+  format = "setuptools";
   disabled = pythonOlder "3.6";
 
   src = fetchPypi {
diff --git a/pkgs/development/python-modules/pystemmer/default.nix b/pkgs/development/python-modules/pystemmer/default.nix
index 568f0bf2c80e..03f60507f8c4 100644
--- a/pkgs/development/python-modules/pystemmer/default.nix
+++ b/pkgs/development/python-modules/pystemmer/default.nix
@@ -12,6 +12,7 @@
 buildPythonPackage rec {
   pname = "pystemmer";
   version = "2.2.0.1";
+  format = "setuptools";
   pyproejct = true;
 
   src = fetchFromGitHub {
diff --git a/pkgs/development/python-modules/pytestcache/default.nix b/pkgs/development/python-modules/pytestcache/default.nix
index dbed88eb85fa..c0893d0d088b 100644
--- a/pkgs/development/python-modules/pytestcache/default.nix
+++ b/pkgs/development/python-modules/pytestcache/default.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "pytest-cache";
   version = "1.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python-modules/python-didl-lite/default.nix b/pkgs/development/python-modules/python-didl-lite/default.nix
index 9a22ab1fc41d..59660aab7748 100644
--- a/pkgs/development/python-modules/python-didl-lite/default.nix
+++ b/pkgs/development/python-modules/python-didl-lite/default.nix
@@ -11,6 +11,7 @@
 buildPythonPackage rec {
   pname = "python-didl-lite";
   version = "1.4.1";
+  format = "setuptools";
   pyroject = true;
 
   disabled = pythonOlder "3.8";
diff --git a/pkgs/development/python-modules/qreactor/default.nix b/pkgs/development/python-modules/qreactor/default.nix
index 7d575ed63908..cd644587e33e 100644
--- a/pkgs/development/python-modules/qreactor/default.nix
+++ b/pkgs/development/python-modules/qreactor/default.nix
@@ -10,6 +10,7 @@
 buildPythonPackage {
   pname = "qreactor-unstable";
   version = "2018-09-29";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "frmdstryr";
diff --git a/pkgs/development/python-modules/raincloudy/default.nix b/pkgs/development/python-modules/raincloudy/default.nix
index 5db3430efb3d..20728bec1608 100644
--- a/pkgs/development/python-modules/raincloudy/default.nix
+++ b/pkgs/development/python-modules/raincloudy/default.nix
@@ -21,6 +21,7 @@
 buildPythonPackage rec {
   pname = "raincloudy";
   version = "1.2.0";
+  format = "setuptools";
   pypriject = true;
 
   # https://github.com/vanstinator/raincloudy/issues/65
diff --git a/pkgs/development/python-modules/remctl/default.nix b/pkgs/development/python-modules/remctl/default.nix
index 3e672e9e56d2..3475943d4269 100644
--- a/pkgs/development/python-modules/remctl/default.nix
+++ b/pkgs/development/python-modules/remctl/default.nix
@@ -7,6 +7,7 @@
 }:
 
 buildPythonPackage {
+  format = "setuptools";
   inherit (remctl-c)
     meta
     pname
diff --git a/pkgs/development/python-modules/rtfunicode/default.nix b/pkgs/development/python-modules/rtfunicode/default.nix
index 30a64107ed90..65e35a36e5cb 100644
--- a/pkgs/development/python-modules/rtfunicode/default.nix
+++ b/pkgs/development/python-modules/rtfunicode/default.nix
@@ -8,6 +8,7 @@
 buildPythonPackage rec {
   pname = "rtfunicode";
   version = "1.4";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "mjpieters";
diff --git a/pkgs/development/python-modules/sdbus-networkmanager/default.nix b/pkgs/development/python-modules/sdbus-networkmanager/default.nix
index 5197d640e56f..fd0e9712b69d 100644
--- a/pkgs/development/python-modules/sdbus-networkmanager/default.nix
+++ b/pkgs/development/python-modules/sdbus-networkmanager/default.nix
@@ -10,6 +10,7 @@ let
   version = "2.0.0";
 in
 buildPythonPackage {
+  format = "setuptools";
   inherit pname version;
 
   propagatedBuildInputs = [ sdbus ];
diff --git a/pkgs/development/python-modules/sdbus/default.nix b/pkgs/development/python-modules/sdbus/default.nix
index 5f97378702ab..00b53c5c4e60 100644
--- a/pkgs/development/python-modules/sdbus/default.nix
+++ b/pkgs/development/python-modules/sdbus/default.nix
@@ -11,6 +11,7 @@ let
   version = "0.14.0";
 in
 buildPythonPackage {
+  format = "setuptools";
   inherit pname version;
 
   nativeBuildInputs = [ pkg-config ];
diff --git a/pkgs/development/python-modules/seccomp/default.nix b/pkgs/development/python-modules/seccomp/default.nix
index 4e217dab7f8b..8614915e1ff4 100644
--- a/pkgs/development/python-modules/seccomp/default.nix
+++ b/pkgs/development/python-modules/seccomp/default.nix
@@ -8,6 +8,7 @@
 buildPythonPackage rec {
   pname = "libseccomp";
   version = libseccomp.version;
+  format = "setuptools";
   src = libseccomp.pythonsrc;
 
   VERSION_RELEASE = version; # used by build system
diff --git a/pkgs/development/python-modules/semgrep/default.nix b/pkgs/development/python-modules/semgrep/default.nix
index 91abd5bea075..ee915a30945c 100644
--- a/pkgs/development/python-modules/semgrep/default.nix
+++ b/pkgs/development/python-modules/semgrep/default.nix
@@ -47,6 +47,7 @@ let
   semgrepBinPath = lib.makeBinPath [ semgrep-core ];
 in
 buildPythonPackage rec {
+  format = "setuptools";
   pname = "semgrep";
   inherit (common) version;
   src = fetchFromGitHub {
diff --git a/pkgs/development/python-modules/senf/default.nix b/pkgs/development/python-modules/senf/default.nix
index 8397a856f7e1..c2218e738505 100644
--- a/pkgs/development/python-modules/senf/default.nix
+++ b/pkgs/development/python-modules/senf/default.nix
@@ -10,6 +10,7 @@
 buildPythonPackage {
   pname = "senf";
   version = "1.5.0-unstable-2024-11-26";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "quodlibet";
diff --git a/pkgs/development/python-modules/socksipy-branch/default.nix b/pkgs/development/python-modules/socksipy-branch/default.nix
index e09d1aeb025a..01ebe477275e 100644
--- a/pkgs/development/python-modules/socksipy-branch/default.nix
+++ b/pkgs/development/python-modules/socksipy-branch/default.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "socksipy-branch";
   version = "1.01";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "SocksiPy-branch";
diff --git a/pkgs/development/python-modules/spacy/legacy.nix b/pkgs/development/python-modules/spacy/legacy.nix
index 3bd9c33b7e82..55f0f97b4e61 100644
--- a/pkgs/development/python-modules/spacy/legacy.nix
+++ b/pkgs/development/python-modules/spacy/legacy.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "spacy-legacy";
   version = "3.0.12";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python-modules/ssh-python/default.nix b/pkgs/development/python-modules/ssh-python/default.nix
index eac4194a0871..c87730307d50 100644
--- a/pkgs/development/python-modules/ssh-python/default.nix
+++ b/pkgs/development/python-modules/ssh-python/default.nix
@@ -12,6 +12,7 @@
 buildPythonPackage rec {
   pname = "ssh-python";
   version = "1.1.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "ParallelSSH";
diff --git a/pkgs/development/python-modules/ssh2-python/default.nix b/pkgs/development/python-modules/ssh2-python/default.nix
index 341f08480241..c52d4485ef90 100644
--- a/pkgs/development/python-modules/ssh2-python/default.nix
+++ b/pkgs/development/python-modules/ssh2-python/default.nix
@@ -12,6 +12,7 @@
 buildPythonPackage rec {
   pname = "ssh2-python";
   version = "1.1.2.post1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "ParallelSSH";
diff --git a/pkgs/development/python-modules/stravaweblib/default.nix b/pkgs/development/python-modules/stravaweblib/default.nix
index d940a05ba92d..c183909e052b 100644
--- a/pkgs/development/python-modules/stravaweblib/default.nix
+++ b/pkgs/development/python-modules/stravaweblib/default.nix
@@ -16,6 +16,7 @@
 buildPythonPackage rec {
   pname = "stravaweblib";
   version = "0.0.10";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "pR0Ps";
diff --git a/pkgs/development/python-modules/streamcontroller-plugin-tools/default.nix b/pkgs/development/python-modules/streamcontroller-plugin-tools/default.nix
index 1375f6eae785..4dba674e1527 100644
--- a/pkgs/development/python-modules/streamcontroller-plugin-tools/default.nix
+++ b/pkgs/development/python-modules/streamcontroller-plugin-tools/default.nix
@@ -8,6 +8,7 @@
 buildPythonPackage rec {
   pname = "streamcontroller-plugin-tools";
   version = "2.0.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "StreamController";
diff --git a/pkgs/development/python-modules/sudachipy/default.nix b/pkgs/development/python-modules/sudachipy/default.nix
index 70ca416469a9..9420c5d20b8b 100644
--- a/pkgs/development/python-modules/sudachipy/default.nix
+++ b/pkgs/development/python-modules/sudachipy/default.nix
@@ -15,6 +15,7 @@
 }:
 
 buildPythonPackage rec {
+  format = "setuptools";
   pname = "sudachipy";
   inherit (sudachi-rs) src version;
 
diff --git a/pkgs/development/python-modules/tensorflow/default.nix b/pkgs/development/python-modules/tensorflow/default.nix
index 2af0d63b9d5b..fb954244d334 100644
--- a/pkgs/development/python-modules/tensorflow/default.nix
+++ b/pkgs/development/python-modules/tensorflow/default.nix
@@ -599,7 +599,7 @@ let
 in
 buildPythonPackage {
   __structuredAttrs = true;
-  inherit version pname;
+  inherit version pname format;
   disabled = pythonAtLeast "3.12";
 
   src = bazel-build.python;
diff --git a/pkgs/development/python-modules/timy/default.nix b/pkgs/development/python-modules/timy/default.nix
index ad4092cfba35..42613697e20d 100644
--- a/pkgs/development/python-modules/timy/default.nix
+++ b/pkgs/development/python-modules/timy/default.nix
@@ -8,6 +8,7 @@
 buildPythonPackage {
   pname = "timy";
   version = "0.4.2";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "ramonsaraiva";
diff --git a/pkgs/development/python-modules/tlslite/default.nix b/pkgs/development/python-modules/tlslite/default.nix
index 069377735f6b..4d59a12bc82e 100644
--- a/pkgs/development/python-modules/tlslite/default.nix
+++ b/pkgs/development/python-modules/tlslite/default.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "tlslite";
   version = "0.4.9";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python-modules/torchvision/default.nix b/pkgs/development/python-modules/torchvision/default.nix
index 6fc4d61d209e..afe7782cce19 100644
--- a/pkgs/development/python-modules/torchvision/default.nix
+++ b/pkgs/development/python-modules/torchvision/default.nix
@@ -32,6 +32,7 @@ let
   version = "0.22.1";
 in
 buildPythonPackage {
+  format = "setuptools";
   inherit pname version;
 
   stdenv = torch.stdenv;
diff --git a/pkgs/development/python-modules/trectools/default.nix b/pkgs/development/python-modules/trectools/default.nix
index e91175fbc193..f23f6e22eb07 100644
--- a/pkgs/development/python-modules/trectools/default.nix
+++ b/pkgs/development/python-modules/trectools/default.nix
@@ -19,6 +19,7 @@
 buildPythonPackage {
   pname = "trectools";
   version = "0.0.50";
+  format = "setuptools";
 
   disabled = pythonOlder "3.6";
 
diff --git a/pkgs/development/python-modules/ttkbootstrap/default.nix b/pkgs/development/python-modules/ttkbootstrap/default.nix
index d85b9da366bb..458ae0b51d69 100644
--- a/pkgs/development/python-modules/ttkbootstrap/default.nix
+++ b/pkgs/development/python-modules/ttkbootstrap/default.nix
@@ -10,6 +10,7 @@
 buildPythonPackage rec {
   pname = "ttkbootstrap";
   version = "1.12.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "israel-dryer";
diff --git a/pkgs/development/python-modules/tuya-device-sharing-sdk/default.nix b/pkgs/development/python-modules/tuya-device-sharing-sdk/default.nix
index d24bc3fecede..5f8f9b21d5b7 100644
--- a/pkgs/development/python-modules/tuya-device-sharing-sdk/default.nix
+++ b/pkgs/development/python-modules/tuya-device-sharing-sdk/default.nix
@@ -12,6 +12,7 @@ let
   version = "0.2.1";
 in
 buildPythonPackage {
+  format = "setuptools";
   inherit pname version;
 
   src = fetchPypi {
diff --git a/pkgs/development/python-modules/twiggy/default.nix b/pkgs/development/python-modules/twiggy/default.nix
index 1c1759aeb815..e71d5b122fec 100644
--- a/pkgs/development/python-modules/twiggy/default.nix
+++ b/pkgs/development/python-modules/twiggy/default.nix
@@ -8,6 +8,7 @@
 buildPythonPackage rec {
   pname = "twiggy";
   version = "0.5.1";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "Twiggy";
diff --git a/pkgs/development/python-modules/txamqp/default.nix b/pkgs/development/python-modules/txamqp/default.nix
index f9dacc571c58..e68311148f82 100644
--- a/pkgs/development/python-modules/txamqp/default.nix
+++ b/pkgs/development/python-modules/txamqp/default.nix
@@ -8,6 +8,7 @@
 buildPythonPackage rec {
   pname = "txamqp";
   version = "0.8.2";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "txAMQP";
diff --git a/pkgs/development/python-modules/typecode/libmagic.nix b/pkgs/development/python-modules/typecode/libmagic.nix
index a666aa65eff1..170cf39df85a 100644
--- a/pkgs/development/python-modules/typecode/libmagic.nix
+++ b/pkgs/development/python-modules/typecode/libmagic.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "typecode-libmagic";
   version = "21.5.31";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "aboutcode-org";
diff --git a/pkgs/development/python-modules/ua-parser-rs/default.nix b/pkgs/development/python-modules/ua-parser-rs/default.nix
index 5ca486ddf773..a79e9c8c58f0 100644
--- a/pkgs/development/python-modules/ua-parser-rs/default.nix
+++ b/pkgs/development/python-modules/ua-parser-rs/default.nix
@@ -11,6 +11,7 @@
 buildPythonPackage rec {
   pname = "ua-parser-rs";
   version = "0.1.3";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "ua-parser";
diff --git a/pkgs/development/python-modules/ukpostcodeparser/default.nix b/pkgs/development/python-modules/ukpostcodeparser/default.nix
index 611e21ed8ada..333942e14298 100644
--- a/pkgs/development/python-modules/ukpostcodeparser/default.nix
+++ b/pkgs/development/python-modules/ukpostcodeparser/default.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "ukpostcodeparser";
   version = "1.1.2";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "UkPostcodeParser";
diff --git a/pkgs/development/python-modules/usb-monitor/default.nix b/pkgs/development/python-modules/usb-monitor/default.nix
index 1f4c3c2cbfe9..eb656bef25f3 100644
--- a/pkgs/development/python-modules/usb-monitor/default.nix
+++ b/pkgs/development/python-modules/usb-monitor/default.nix
@@ -8,6 +8,7 @@
 buildPythonPackage rec {
   pname = "usb-monitor";
   version = "1.23";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit version;
diff --git a/pkgs/development/python-modules/vxi11/default.nix b/pkgs/development/python-modules/vxi11/default.nix
index 3a661b9ed3e3..c7950914b3fd 100644
--- a/pkgs/development/python-modules/vxi11/default.nix
+++ b/pkgs/development/python-modules/vxi11/default.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "python-vxi11";
   version = "0.9";
+  format = "setuptools";
 
   # no tests in PyPI tarball
   src = fetchFromGitHub {
diff --git a/pkgs/development/python-modules/wasmer/tests.nix b/pkgs/development/python-modules/wasmer/tests.nix
index 6c20ab229cea..24c06839424f 100644
--- a/pkgs/development/python-modules/wasmer/tests.nix
+++ b/pkgs/development/python-modules/wasmer/tests.nix
@@ -8,6 +8,7 @@
 }:
 
 buildPythonPackage {
+  format = "setuptools";
   pname = "wasmer-tests";
   inherit (wasmer) version;
 
diff --git a/pkgs/development/python-modules/waybackpy/default.nix b/pkgs/development/python-modules/waybackpy/default.nix
index 222a3566600f..3ecfae5d4c55 100644
--- a/pkgs/development/python-modules/waybackpy/default.nix
+++ b/pkgs/development/python-modules/waybackpy/default.nix
@@ -10,6 +10,7 @@
 buildPythonPackage rec {
   pname = "waybackpy";
   version = "3.0.6";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python-modules/web/default.nix b/pkgs/development/python-modules/web/default.nix
index b14aeeb3294f..99c0ccd77fa5 100644
--- a/pkgs/development/python-modules/web/default.nix
+++ b/pkgs/development/python-modules/web/default.nix
@@ -15,6 +15,7 @@
 
 buildPythonPackage rec {
   version = "0.62";
+  format = "setuptools";
   pname = "web.py";
 
   src = fetchPypi {
diff --git a/pkgs/development/python-modules/wheezy-template/default.nix b/pkgs/development/python-modules/wheezy-template/default.nix
index fcdaf64d802c..9d2e7a36d0c4 100644
--- a/pkgs/development/python-modules/wheezy-template/default.nix
+++ b/pkgs/development/python-modules/wheezy-template/default.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "wheezy.template";
   version = "3.2.2";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python-modules/xstatic-asciinema-player/default.nix b/pkgs/development/python-modules/xstatic-asciinema-player/default.nix
index 4427858a8157..4b44fda0030e 100644
--- a/pkgs/development/python-modules/xstatic-asciinema-player/default.nix
+++ b/pkgs/development/python-modules/xstatic-asciinema-player/default.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "xstatic-asciinema-player";
   version = "2.6.1.1";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "XStatic-asciinema-player";
diff --git a/pkgs/development/python-modules/xstatic-bootbox/default.nix b/pkgs/development/python-modules/xstatic-bootbox/default.nix
index 7dc54dc30748..bafdb3adfcac 100644
--- a/pkgs/development/python-modules/xstatic-bootbox/default.nix
+++ b/pkgs/development/python-modules/xstatic-bootbox/default.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "xstatic-bootbox";
   version = "5.5.1.1";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "XStatic-Bootbox";
diff --git a/pkgs/development/python-modules/xstatic-bootstrap/default.nix b/pkgs/development/python-modules/xstatic-bootstrap/default.nix
index 55e1f68761a0..a5d8aea5952f 100644
--- a/pkgs/development/python-modules/xstatic-bootstrap/default.nix
+++ b/pkgs/development/python-modules/xstatic-bootstrap/default.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "xstatic-bootstrap";
   version = "4.5.3.1";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "XStatic-Bootstrap";
diff --git a/pkgs/development/python-modules/xstatic-font-awesome/default.nix b/pkgs/development/python-modules/xstatic-font-awesome/default.nix
index 7f8d70372a3d..1efb647ce53d 100644
--- a/pkgs/development/python-modules/xstatic-font-awesome/default.nix
+++ b/pkgs/development/python-modules/xstatic-font-awesome/default.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "xstatic-font-awesome";
   version = "6.2.1.1";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "XStatic-Font-Awesome";
diff --git a/pkgs/development/python-modules/xstatic-jquery-file-upload/default.nix b/pkgs/development/python-modules/xstatic-jquery-file-upload/default.nix
index cb5efd7aebb8..a91bf544dc8c 100644
--- a/pkgs/development/python-modules/xstatic-jquery-file-upload/default.nix
+++ b/pkgs/development/python-modules/xstatic-jquery-file-upload/default.nix
@@ -8,6 +8,7 @@
 buildPythonPackage rec {
   pname = "xstatic-jquery-file-upload";
   version = "10.31.0.1";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "XStatic-jQuery-File-Upload";
diff --git a/pkgs/development/python-modules/xstatic-jquery-ui/default.nix b/pkgs/development/python-modules/xstatic-jquery-ui/default.nix
index 9af1d20c0cdb..548e6deaccd3 100644
--- a/pkgs/development/python-modules/xstatic-jquery-ui/default.nix
+++ b/pkgs/development/python-modules/xstatic-jquery-ui/default.nix
@@ -8,6 +8,7 @@
 buildPythonPackage rec {
   pname = "xstatic-jquery-ui";
   version = "1.13.0.1";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "XStatic-jquery-ui";
diff --git a/pkgs/development/python-modules/xstatic-jquery/default.nix b/pkgs/development/python-modules/xstatic-jquery/default.nix
index 2e3f4b9831a5..7688be842da0 100644
--- a/pkgs/development/python-modules/xstatic-jquery/default.nix
+++ b/pkgs/development/python-modules/xstatic-jquery/default.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "xstatic-jquery";
   version = "3.5.1.1";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "XStatic-jQuery";
diff --git a/pkgs/development/python-modules/xstatic-pygments/default.nix b/pkgs/development/python-modules/xstatic-pygments/default.nix
index 39c41f74ced7..6e34fac8a9bc 100644
--- a/pkgs/development/python-modules/xstatic-pygments/default.nix
+++ b/pkgs/development/python-modules/xstatic-pygments/default.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "xstatic-pygments";
   version = "2.9.0.1";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "XStatic-Pygments";
diff --git a/pkgs/development/python-modules/xstatic/default.nix b/pkgs/development/python-modules/xstatic/default.nix
index fb7b2b1e9001..6de703cffbfe 100644
--- a/pkgs/development/python-modules/xstatic/default.nix
+++ b/pkgs/development/python-modules/xstatic/default.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "xstatic";
   version = "1.0.3";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "XStatic";
diff --git a/pkgs/development/python-modules/yubico/default.nix b/pkgs/development/python-modules/yubico/default.nix
index 68da9e13b6c8..3797bbe3df36 100644
--- a/pkgs/development/python-modules/yubico/default.nix
+++ b/pkgs/development/python-modules/yubico/default.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "python-yubico";
   version = "1.3.3";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python2-modules/attrs/default.nix b/pkgs/development/python2-modules/attrs/default.nix
index d4b2630bd4cd..c7fd1a72abcd 100644
--- a/pkgs/development/python2-modules/attrs/default.nix
+++ b/pkgs/development/python2-modules/attrs/default.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "attrs";
   version = "21.4.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python2-modules/configparser/default.nix b/pkgs/development/python2-modules/configparser/default.nix
index bff2f2723340..ff46fa579a31 100644
--- a/pkgs/development/python2-modules/configparser/default.nix
+++ b/pkgs/development/python2-modules/configparser/default.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "configparser";
   version = "4.0.2";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python2-modules/contextlib2/default.nix b/pkgs/development/python2-modules/contextlib2/default.nix
index 6da00c18b627..273fd278c528 100644
--- a/pkgs/development/python2-modules/contextlib2/default.nix
+++ b/pkgs/development/python2-modules/contextlib2/default.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "contextlib2";
   version = "0.6.0.post1";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python2-modules/coverage/default.nix b/pkgs/development/python2-modules/coverage/default.nix
index 49766e98858f..7bf3247d8768 100644
--- a/pkgs/development/python2-modules/coverage/default.nix
+++ b/pkgs/development/python2-modules/coverage/default.nix
@@ -8,6 +8,7 @@
 buildPythonPackage rec {
   pname = "coverage";
   version = "5.5";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python2-modules/enum/default.nix b/pkgs/development/python2-modules/enum/default.nix
index b2cf685df143..15bf2e30836a 100644
--- a/pkgs/development/python2-modules/enum/default.nix
+++ b/pkgs/development/python2-modules/enum/default.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "enum";
   version = "0.4.7";
+  format = "setuptools";
   disabled = isPy3k;
 
   src = fetchPypi {
diff --git a/pkgs/development/python2-modules/filelock/default.nix b/pkgs/development/python2-modules/filelock/default.nix
index 15ba0afec8b6..fc94a3aff28b 100644
--- a/pkgs/development/python2-modules/filelock/default.nix
+++ b/pkgs/development/python2-modules/filelock/default.nix
@@ -8,6 +8,7 @@
 buildPythonPackage rec {
   pname = "filelock";
   version = "3.2.1";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python2-modules/futures/default.nix b/pkgs/development/python2-modules/futures/default.nix
index 035962759c4c..0b195b6b53c2 100644
--- a/pkgs/development/python2-modules/futures/default.nix
+++ b/pkgs/development/python2-modules/futures/default.nix
@@ -10,6 +10,7 @@
 buildPythonPackage rec {
   pname = "futures";
   version = "3.3.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python2-modules/hypothesis/default.nix b/pkgs/development/python2-modules/hypothesis/default.nix
index 955cb63aee19..b4234e6ac1fc 100644
--- a/pkgs/development/python2-modules/hypothesis/default.nix
+++ b/pkgs/development/python2-modules/hypothesis/default.nix
@@ -20,6 +20,7 @@ buildPythonPackage rec {
   # If you need these, you can just add them to your environment.
 
   version = "4.57.1";
+  format = "setuptools";
   pname = "hypothesis";
 
   # Use github tarballs that includes tests
diff --git a/pkgs/development/python2-modules/importlib-metadata/default.nix b/pkgs/development/python2-modules/importlib-metadata/default.nix
index 72b37433c512..219da18edf70 100644
--- a/pkgs/development/python2-modules/importlib-metadata/default.nix
+++ b/pkgs/development/python2-modules/importlib-metadata/default.nix
@@ -13,6 +13,7 @@
 buildPythonPackage rec {
   pname = "importlib-metadata";
   version = "2.1.1";
+  format = "setuptools";
 
   src = fetchPypi {
     pname = "importlib_metadata";
diff --git a/pkgs/development/python2-modules/jinja2/default.nix b/pkgs/development/python2-modules/jinja2/default.nix
index 53f9bb60379d..26d5b37a0e9b 100644
--- a/pkgs/development/python2-modules/jinja2/default.nix
+++ b/pkgs/development/python2-modules/jinja2/default.nix
@@ -12,6 +12,7 @@
 buildPythonPackage rec {
   pname = "Jinja2";
   version = "2.11.3";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python2-modules/markupsafe/default.nix b/pkgs/development/python2-modules/markupsafe/default.nix
index dc1eededf2d3..fa8b8554c060 100644
--- a/pkgs/development/python2-modules/markupsafe/default.nix
+++ b/pkgs/development/python2-modules/markupsafe/default.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "MarkupSafe";
   version = "1.1.1";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python2-modules/mock/default.nix b/pkgs/development/python2-modules/mock/default.nix
index 63298dfc38df..79d73b9dba27 100644
--- a/pkgs/development/python2-modules/mock/default.nix
+++ b/pkgs/development/python2-modules/mock/default.nix
@@ -13,6 +13,7 @@
 buildPythonPackage rec {
   pname = "mock";
   version = "3.0.5";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python2-modules/more-itertools/default.nix b/pkgs/development/python2-modules/more-itertools/default.nix
index ae2d5f723564..783f57e1cfa9 100644
--- a/pkgs/development/python2-modules/more-itertools/default.nix
+++ b/pkgs/development/python2-modules/more-itertools/default.nix
@@ -10,6 +10,7 @@
 buildPythonPackage rec {
   pname = "more-itertools";
   version = "5.0.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python2-modules/pluggy/default.nix b/pkgs/development/python2-modules/pluggy/default.nix
index 6765530948a2..968068182188 100644
--- a/pkgs/development/python2-modules/pluggy/default.nix
+++ b/pkgs/development/python2-modules/pluggy/default.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "pluggy";
   version = "0.13.1";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python2-modules/pyparsing/default.nix b/pkgs/development/python2-modules/pyparsing/default.nix
index 52566d07ce5e..7b7f31d0c51c 100644
--- a/pkgs/development/python2-modules/pyparsing/default.nix
+++ b/pkgs/development/python2-modules/pyparsing/default.nix
@@ -13,6 +13,7 @@ let
   pyparsing = buildPythonPackage rec {
     pname = "pyparsing";
     version = "2.4.7";
+    format = "setuptools";
 
     src = fetchFromGitHub {
       owner = "pyparsing";
diff --git a/pkgs/development/python2-modules/pytest-xdist/default.nix b/pkgs/development/python2-modules/pytest-xdist/default.nix
index 73b845f75307..496479af6c87 100644
--- a/pkgs/development/python2-modules/pytest-xdist/default.nix
+++ b/pkgs/development/python2-modules/pytest-xdist/default.nix
@@ -15,6 +15,7 @@
 buildPythonPackage rec {
   pname = "pytest-xdist";
   version = "1.34.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python2-modules/pytest/default.nix b/pkgs/development/python2-modules/pytest/default.nix
index e66e44097de5..6f22a854c335 100644
--- a/pkgs/development/python2-modules/pytest/default.nix
+++ b/pkgs/development/python2-modules/pytest/default.nix
@@ -23,6 +23,7 @@
 }:
 buildPythonPackage rec {
   version = "4.6.11";
+  format = "setuptools";
   pname = "pytest";
 
   src = fetchPypi {
diff --git a/pkgs/development/python2-modules/scandir/default.nix b/pkgs/development/python2-modules/scandir/default.nix
index 650dee1ddf83..c11a76eb1cda 100644
--- a/pkgs/development/python2-modules/scandir/default.nix
+++ b/pkgs/development/python2-modules/scandir/default.nix
@@ -8,6 +8,7 @@
 buildPythonPackage rec {
   pname = "scandir";
   version = "1.10.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python2-modules/setuptools-scm/default.nix b/pkgs/development/python2-modules/setuptools-scm/default.nix
index ef0e4de6b2be..a33c9dc592ed 100644
--- a/pkgs/development/python2-modules/setuptools-scm/default.nix
+++ b/pkgs/development/python2-modules/setuptools-scm/default.nix
@@ -8,6 +8,7 @@
 buildPythonPackage rec {
   pname = "setuptools_scm";
   version = "5.0.2";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python2-modules/typing/default.nix b/pkgs/development/python2-modules/typing/default.nix
index 1d6f07eb8780..6fbc394f0768 100644
--- a/pkgs/development/python2-modules/typing/default.nix
+++ b/pkgs/development/python2-modules/typing/default.nix
@@ -16,6 +16,7 @@ in
 buildPythonPackage rec {
   pname = "typing";
   version = "3.10.0.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/python2-modules/zipp/default.nix b/pkgs/development/python2-modules/zipp/default.nix
index b4aed672ffa9..dd7416d40e59 100644
--- a/pkgs/development/python2-modules/zipp/default.nix
+++ b/pkgs/development/python2-modules/zipp/default.nix
@@ -11,6 +11,7 @@
 buildPythonPackage rec {
   pname = "zipp";
   version = "1.0.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/tools/asn2quickder/default.nix b/pkgs/development/tools/asn2quickder/default.nix
index be236cb5464d..db43294356fa 100644
--- a/pkgs/development/tools/asn2quickder/default.nix
+++ b/pkgs/development/tools/asn2quickder/default.nix
@@ -13,6 +13,7 @@
 buildPythonApplication rec {
   pname = "asn2quickder";
   version = "1.7.1";
+  format = "setuptools";
 
   src = fetchFromGitLab {
     owner = "arpa2";
diff --git a/pkgs/development/tools/continuous-integration/buildbot/pkg.nix b/pkgs/development/tools/continuous-integration/buildbot/pkg.nix
index 988f503d9fde..053172a0355c 100644
--- a/pkgs/development/tools/continuous-integration/buildbot/pkg.nix
+++ b/pkgs/development/tools/continuous-integration/buildbot/pkg.nix
@@ -6,6 +6,7 @@
 }:
 
 buildPythonPackage {
+  format = "setuptools";
   pname = "buildbot_pkg";
   inherit (buildbot) src version;
 
diff --git a/pkgs/development/tools/continuous-integration/buildbot/plugins.nix b/pkgs/development/tools/continuous-integration/buildbot/plugins.nix
index 957da318e5db..01283b756e99 100644
--- a/pkgs/development/tools/continuous-integration/buildbot/plugins.nix
+++ b/pkgs/development/tools/continuous-integration/buildbot/plugins.nix
@@ -13,6 +13,7 @@
   # this is exposed for potential plugins to use and for nix-update
   inherit buildbot-pkg;
   www = buildPythonPackage rec {
+    format = "setuptools";
     pname = "buildbot_www";
     inherit (buildbot-pkg) version;
 
@@ -45,6 +46,7 @@
   console-view = buildPythonPackage rec {
     pname = "buildbot_console_view";
     inherit (buildbot-pkg) version;
+    format = "setuptools";
 
     src = fetchurl {
       url = "https://github.com/buildbot/buildbot/releases/download/v${version}/${pname}-${version}.tar.gz";
@@ -67,6 +69,7 @@
   waterfall-view = buildPythonPackage rec {
     pname = "buildbot_waterfall_view";
     inherit (buildbot-pkg) version;
+    format = "setuptools";
 
     src = fetchurl {
       url = "https://github.com/buildbot/buildbot/releases/download/v${version}/${pname}-${version}.tar.gz";
@@ -89,6 +92,7 @@
   grid-view = buildPythonPackage rec {
     pname = "buildbot_grid_view";
     inherit (buildbot-pkg) version;
+    format = "setuptools";
 
     src = fetchurl {
       url = "https://github.com/buildbot/buildbot/releases/download/v${version}/${pname}-${version}.tar.gz";
@@ -111,6 +115,7 @@
   wsgi-dashboards = buildPythonPackage rec {
     pname = "buildbot_wsgi_dashboards";
     inherit (buildbot-pkg) version;
+    format = "setuptools";
 
     src = fetchurl {
       url = "https://github.com/buildbot/buildbot/releases/download/v${version}/${pname}-${version}.tar.gz";
@@ -133,6 +138,7 @@
   badges = buildPythonPackage rec {
     pname = "buildbot_badges";
     inherit (buildbot-pkg) version;
+    format = "setuptools";
 
     src = fetchurl {
       url = "https://github.com/buildbot/buildbot/releases/download/v${version}/${pname}-${version}.tar.gz";
diff --git a/pkgs/development/tools/continuous-integration/buildbot/worker.nix b/pkgs/development/tools/continuous-integration/buildbot/worker.nix
index c8d4633b4716..67e45ff6f80d 100644
--- a/pkgs/development/tools/continuous-integration/buildbot/worker.nix
+++ b/pkgs/development/tools/continuous-integration/buildbot/worker.nix
@@ -24,6 +24,7 @@
 buildPythonPackage ({
   pname = "buildbot_worker";
   inherit (buildbot) src version;
+  format = "setuptools";
 
   postPatch = ''
     cd worker
diff --git a/pkgs/development/tools/dazel/default.nix b/pkgs/development/tools/dazel/default.nix
index 1a898b19118d..69cd6ffc7f34 100644
--- a/pkgs/development/tools/dazel/default.nix
+++ b/pkgs/development/tools/dazel/default.nix
@@ -5,6 +5,7 @@
 }:
 buildPythonApplication rec {
   version = "0.0.42";
+  format = "setuptools";
   pname = "dazel";
 
   src = fetchPypi {
diff --git a/pkgs/development/tools/documentation/doxygen/doxmlparser.nix b/pkgs/development/tools/documentation/doxygen/doxmlparser.nix
index e2da763cb289..e57b70c5201f 100644
--- a/pkgs/development/tools/documentation/doxygen/doxmlparser.nix
+++ b/pkgs/development/tools/documentation/doxygen/doxmlparser.nix
@@ -6,6 +6,7 @@
   six,
 }:
 buildPythonPackage rec {
+  format = "setuptools";
   inherit (doxygen) version src;
   pname = "doxmlparser";
 
diff --git a/pkgs/development/tools/language-servers/fortls/default.nix b/pkgs/development/tools/language-servers/fortls/default.nix
index e0b970181b57..c0f63112a243 100644
--- a/pkgs/development/tools/language-servers/fortls/default.nix
+++ b/pkgs/development/tools/language-servers/fortls/default.nix
@@ -10,6 +10,7 @@
 buildPythonApplication rec {
   pname = "fortls";
   version = "3.2.2";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "fortran-lang";
diff --git a/pkgs/development/tools/language-servers/fortran-language-server/default.nix b/pkgs/development/tools/language-servers/fortran-language-server/default.nix
index 419f372c9be1..0cf0a4e4f370 100644
--- a/pkgs/development/tools/language-servers/fortran-language-server/default.nix
+++ b/pkgs/development/tools/language-servers/fortran-language-server/default.nix
@@ -7,6 +7,7 @@
 buildPythonApplication rec {
   pname = "fortran-language-server";
   version = "1.12.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/development/tools/misc/gdbgui/default.nix b/pkgs/development/tools/misc/gdbgui/default.nix
index d58d874c7cca..c988bad2c7f8 100644
--- a/pkgs/development/tools/misc/gdbgui/default.nix
+++ b/pkgs/development/tools/misc/gdbgui/default.nix
@@ -14,6 +14,7 @@ buildPythonApplication rec {
   pname = "gdbgui";
 
   version = "0.15.2.0";
+  format = "setuptools";
 
   buildInputs = [ gdb ];
   propagatedBuildInputs = [
diff --git a/pkgs/development/tools/misc/nixbang/default.nix b/pkgs/development/tools/misc/nixbang/default.nix
index 0cb6f1c24b74..d457fecd159b 100644
--- a/pkgs/development/tools/misc/nixbang/default.nix
+++ b/pkgs/development/tools/misc/nixbang/default.nix
@@ -7,6 +7,7 @@
 pythonPackages.buildPythonApplication rec {
   pname = "nixbang";
   version = "0.1.2";
+  format = "setuptools";
   namePrefix = "";
 
   src = fetchFromGitHub {
diff --git a/pkgs/development/tools/misc/whatstyle/default.nix b/pkgs/development/tools/misc/whatstyle/default.nix
index d84385d93c6c..8cda134d1514 100644
--- a/pkgs/development/tools/misc/whatstyle/default.nix
+++ b/pkgs/development/tools/misc/whatstyle/default.nix
@@ -8,6 +8,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "whatstyle";
   version = "0.2.0";
+  format = "setuptools";
   src = fetchFromGitHub {
     owner = "mikr";
     repo = pname;
diff --git a/pkgs/development/tools/prospector/setoptconf.nix b/pkgs/development/tools/prospector/setoptconf.nix
index dfd3824fdf13..fb00acd10909 100644
--- a/pkgs/development/tools/prospector/setoptconf.nix
+++ b/pkgs/development/tools/prospector/setoptconf.nix
@@ -7,6 +7,7 @@
 buildPythonPackage rec {
   pname = "setoptconf-tmp";
   version = "0.3.1";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/games/anki/default.nix b/pkgs/games/anki/default.nix
index 15b88f67a7bc..89ba530f909b 100644
--- a/pkgs/games/anki/default.nix
+++ b/pkgs/games/anki/default.nix
@@ -78,6 +78,7 @@ let
   };
 in
 python3.pkgs.buildPythonApplication rec {
+  format = "setuptools";
   inherit pname version;
 
   outputs = [
diff --git a/pkgs/games/gscrabble/default.nix b/pkgs/games/gscrabble/default.nix
index 6bef397e3b1c..a262af977e68 100644
--- a/pkgs/games/gscrabble/default.nix
+++ b/pkgs/games/gscrabble/default.nix
@@ -14,6 +14,7 @@
 buildPythonApplication {
   pname = "gscrabble";
   version = "unstable-2020-04-21";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "RaaH";
diff --git a/pkgs/games/legendary-gl/default.nix b/pkgs/games/legendary-gl/default.nix
index b8dbf3c41402..30b58df3f040 100644
--- a/pkgs/games/legendary-gl/default.nix
+++ b/pkgs/games/legendary-gl/default.nix
@@ -11,6 +11,7 @@
 buildPythonApplication {
   pname = "legendary-gl"; # Name in pypi
   version = "0.20.34";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "derrod";
diff --git a/pkgs/games/openttd/nml.nix b/pkgs/games/openttd/nml.nix
index 2a766f03fc78..678a5b2f24a9 100644
--- a/pkgs/games/openttd/nml.nix
+++ b/pkgs/games/openttd/nml.nix
@@ -7,6 +7,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "openttd-nml";
   version = "0.7.6";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "OpenTTD";
diff --git a/pkgs/misc/autotiling/default.nix b/pkgs/misc/autotiling/default.nix
index ff7f4b147d6c..fa0e6373480e 100644
--- a/pkgs/misc/autotiling/default.nix
+++ b/pkgs/misc/autotiling/default.nix
@@ -9,6 +9,7 @@
 buildPythonApplication rec {
   pname = "autotiling";
   version = "1.9.3";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "nwg-piotr";
diff --git a/pkgs/misc/opcua-client-gui/default.nix b/pkgs/misc/opcua-client-gui/default.nix
index 9315bdd8ca3d..b0af3ee898c8 100644
--- a/pkgs/misc/opcua-client-gui/default.nix
+++ b/pkgs/misc/opcua-client-gui/default.nix
@@ -12,6 +12,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "opcua-client-gui";
   version = "0.8.4";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "FreeOpcUa";
diff --git a/pkgs/os-specific/linux/lenovo-legion/app.nix b/pkgs/os-specific/linux/lenovo-legion/app.nix
index 911ee6f4b56c..679a739e1c27 100644
--- a/pkgs/os-specific/linux/lenovo-legion/app.nix
+++ b/pkgs/os-specific/linux/lenovo-legion/app.nix
@@ -9,6 +9,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "lenovo-legion-app";
   version = "0.0.20-unstable-2025-04-01";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "johnfanv2";
diff --git a/pkgs/os-specific/linux/usbrelay/python.nix b/pkgs/os-specific/linux/usbrelay/python.nix
index 90838295ecb5..95114b0ddb20 100644
--- a/pkgs/os-specific/linux/usbrelay/python.nix
+++ b/pkgs/os-specific/linux/usbrelay/python.nix
@@ -1,6 +1,7 @@
 { buildPythonPackage, usbrelay }:
 
 buildPythonPackage {
+  format = "setuptools";
   pname = "usbrelay_py";
   inherit (usbrelay) version src;
 
diff --git a/pkgs/servers/dcnnt/default.nix b/pkgs/servers/dcnnt/default.nix
index 9506193c5bc5..dbdb08f74003 100644
--- a/pkgs/servers/dcnnt/default.nix
+++ b/pkgs/servers/dcnnt/default.nix
@@ -8,6 +8,7 @@
 buildPythonApplication rec {
   pname = "dcnnt";
   version = "0.10.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/servers/isso/default.nix b/pkgs/servers/isso/default.nix
index 26bec1355f12..95ee0c9f3ad1 100644
--- a/pkgs/servers/isso/default.nix
+++ b/pkgs/servers/isso/default.nix
@@ -14,6 +14,7 @@ with python3Packages;
 buildPythonApplication rec {
   pname = "isso";
   version = "0.13.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "posativ";
diff --git a/pkgs/servers/mail/mailman/postorius.nix b/pkgs/servers/mail/mailman/postorius.nix
index 086a2e97e7f4..257b1265d8d1 100644
--- a/pkgs/servers/mail/mailman/postorius.nix
+++ b/pkgs/servers/mail/mailman/postorius.nix
@@ -10,6 +10,7 @@ with python3.pkgs;
 buildPythonPackage rec {
   pname = "postorius";
   version = "1.3.10";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/servers/monitoring/alerta/client.nix b/pkgs/servers/monitoring/alerta/client.nix
index 80c59beb8174..e519085ba510 100644
--- a/pkgs/servers/monitoring/alerta/client.nix
+++ b/pkgs/servers/monitoring/alerta/client.nix
@@ -7,6 +7,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "alerta";
   version = "8.5.3";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/servers/monitoring/alerta/default.nix b/pkgs/servers/monitoring/alerta/default.nix
index 4d2fae037fbd..d7ebe418a73d 100644
--- a/pkgs/servers/monitoring/alerta/default.nix
+++ b/pkgs/servers/monitoring/alerta/default.nix
@@ -7,6 +7,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "alerta-server";
   version = "9.0.1";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/servers/monitoring/nagios-plugins/check_openvpn/default.nix b/pkgs/servers/monitoring/nagios-plugins/check_openvpn/default.nix
index 6fec9f0f0077..51763b874ff9 100644
--- a/pkgs/servers/monitoring/nagios-plugins/check_openvpn/default.nix
+++ b/pkgs/servers/monitoring/nagios-plugins/check_openvpn/default.nix
@@ -7,6 +7,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "check-openvpn";
   version = "0.0.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "liquidat";
diff --git a/pkgs/servers/monitoring/prometheus/pve-exporter.nix b/pkgs/servers/monitoring/prometheus/pve-exporter.nix
index cc8b916dd1ea..51c033f35e6c 100644
--- a/pkgs/servers/monitoring/prometheus/pve-exporter.nix
+++ b/pkgs/servers/monitoring/prometheus/pve-exporter.nix
@@ -8,6 +8,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "prometheus_pve_exporter";
   version = "3.5.5";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/servers/pinnwand/steck.nix b/pkgs/servers/pinnwand/steck.nix
index f4f8578c0797..d6098aa6d9d7 100644
--- a/pkgs/servers/pinnwand/steck.nix
+++ b/pkgs/servers/pinnwand/steck.nix
@@ -9,6 +9,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "steck";
   version = "0.7.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/tools/admin/awsume/default.nix b/pkgs/tools/admin/awsume/default.nix
index 98cba0c23403..85cecfa4659b 100644
--- a/pkgs/tools/admin/awsume/default.nix
+++ b/pkgs/tools/admin/awsume/default.nix
@@ -15,6 +15,7 @@
 buildPythonApplication rec {
   pname = "awsume";
   version = "4.5.5";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "trek10inc";
diff --git a/pkgs/tools/admin/cdist/default.nix b/pkgs/tools/admin/cdist/default.nix
index d15ce58e0566..03d04f1abc50 100644
--- a/pkgs/tools/admin/cdist/default.nix
+++ b/pkgs/tools/admin/cdist/default.nix
@@ -10,6 +10,7 @@
 buildPythonApplication rec {
   pname = "cdist";
   version = "7.0.0";
+  format = "setuptools";
   outputs = [
     "out"
     "man"
diff --git a/pkgs/tools/archivers/unrar-wrapper/default.nix b/pkgs/tools/archivers/unrar-wrapper/default.nix
index 0355624b2764..3a5a9810d043 100644
--- a/pkgs/tools/archivers/unrar-wrapper/default.nix
+++ b/pkgs/tools/archivers/unrar-wrapper/default.nix
@@ -8,6 +8,7 @@
 buildPythonApplication rec {
   pname = "unrar-wrapper";
   version = "1.0.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "openSUSE";
diff --git a/pkgs/tools/audio/tidal-dl/default.nix b/pkgs/tools/audio/tidal-dl/default.nix
index cbc65e765611..89fb185d793e 100644
--- a/pkgs/tools/audio/tidal-dl/default.nix
+++ b/pkgs/tools/audio/tidal-dl/default.nix
@@ -8,6 +8,7 @@
 buildPythonApplication rec {
   pname = "tidal-dl";
   version = "2022.10.31.1";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/tools/backup/pyznap/default.nix b/pkgs/tools/backup/pyznap/default.nix
index 847ee32f8c2f..082ffe7df651 100644
--- a/pkgs/tools/backup/pyznap/default.nix
+++ b/pkgs/tools/backup/pyznap/default.nix
@@ -8,6 +8,7 @@
 buildPythonApplication rec {
   pname = "pyznap";
   version = "1.6.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/tools/filesystems/ceph/default.nix b/pkgs/tools/filesystems/ceph/default.nix
index be9009f6c051..69a1b4be2ec7 100644
--- a/pkgs/tools/filesystems/ceph/default.nix
+++ b/pkgs/tools/filesystems/ceph/default.nix
@@ -195,6 +195,7 @@ let
     with python.pkgs;
     buildPythonPackage {
       pname = "ceph-common";
+      format = "setuptools";
       inherit src version;
 
       sourceRoot = "ceph-${version}/src/python-common";
diff --git a/pkgs/tools/graphics/pixel2svg/default.nix b/pkgs/tools/graphics/pixel2svg/default.nix
index 006c47f87660..413a80dbb8b6 100644
--- a/pkgs/tools/graphics/pixel2svg/default.nix
+++ b/pkgs/tools/graphics/pixel2svg/default.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "pixel2svg";
   version = "0.3.0";
+  format = "setuptools";
 
   src = fetchurl {
     url = "https://static.florian-berger.de/pixel2svg-${version}.zip";
diff --git a/pkgs/tools/inputmethods/input-remapper/default.nix b/pkgs/tools/inputmethods/input-remapper/default.nix
index 07d862c4d238..d27feb6ba541 100644
--- a/pkgs/tools/inputmethods/input-remapper/default.nix
+++ b/pkgs/tools/inputmethods/input-remapper/default.nix
@@ -39,6 +39,7 @@ in
 (buildPythonApplication rec {
   pname = "input-remapper";
   version = "2.1.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "sezanzeb";
diff --git a/pkgs/tools/misc/lice/default.nix b/pkgs/tools/misc/lice/default.nix
index 0c41956f51b5..79511817950d 100644
--- a/pkgs/tools/misc/lice/default.nix
+++ b/pkgs/tools/misc/lice/default.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "lice";
   version = "0.6";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/tools/misc/mpy-utils/default.nix b/pkgs/tools/misc/mpy-utils/default.nix
index c971d272ec44..03002933433a 100644
--- a/pkgs/tools/misc/mpy-utils/default.nix
+++ b/pkgs/tools/misc/mpy-utils/default.nix
@@ -10,6 +10,7 @@
 buildPythonApplication rec {
   pname = "mpy-utils";
   version = "0.1.13";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/tools/misc/online-judge-template-generator/default.nix b/pkgs/tools/misc/online-judge-template-generator/default.nix
index 5eb3cd93224a..a06a93c39e1d 100644
--- a/pkgs/tools/misc/online-judge-template-generator/default.nix
+++ b/pkgs/tools/misc/online-judge-template-generator/default.nix
@@ -18,6 +18,7 @@
 buildPythonApplication rec {
   pname = "online-judge-template-generator";
   version = "4.8.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "online-judge-tools";
diff --git a/pkgs/tools/misc/pandoc-acro/default.nix b/pkgs/tools/misc/pandoc-acro/default.nix
index 429d870cbb3e..345c56f9eafb 100644
--- a/pkgs/tools/misc/pandoc-acro/default.nix
+++ b/pkgs/tools/misc/pandoc-acro/default.nix
@@ -20,6 +20,7 @@ let
   };
 in
 buildPythonApplication {
+  format = "setuptools";
   inherit pname version src;
 
   propagatedBuildInputs = [
diff --git a/pkgs/tools/misc/pandoc-drawio-filter/default.nix b/pkgs/tools/misc/pandoc-drawio-filter/default.nix
index cea114175301..7e330dcdde00 100644
--- a/pkgs/tools/misc/pandoc-drawio-filter/default.nix
+++ b/pkgs/tools/misc/pandoc-drawio-filter/default.nix
@@ -20,6 +20,7 @@ let
   };
 
   pandoc-drawio-filter = buildPythonApplication {
+    format = "setuptools";
     pname = "pandoc-drawio-filter";
 
     inherit src version;
diff --git a/pkgs/tools/misc/pandoc-imagine/default.nix b/pkgs/tools/misc/pandoc-imagine/default.nix
index f075776a4b0f..49ec4a221a5b 100644
--- a/pkgs/tools/misc/pandoc-imagine/default.nix
+++ b/pkgs/tools/misc/pandoc-imagine/default.nix
@@ -9,6 +9,7 @@
 buildPythonApplication rec {
   pname = "pandoc-imagine";
   version = "0.1.6";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     repo = "imagine";
diff --git a/pkgs/tools/misc/psrecord/default.nix b/pkgs/tools/misc/psrecord/default.nix
index 1b14d62d6403..8ad799f85d67 100644
--- a/pkgs/tools/misc/psrecord/default.nix
+++ b/pkgs/tools/misc/psrecord/default.nix
@@ -9,6 +9,7 @@
 buildPythonApplication rec {
   pname = "psrecord";
   version = "1.2";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/tools/misc/qmake2cmake/default.nix b/pkgs/tools/misc/qmake2cmake/default.nix
index e6507c8a5df6..1d2e6c49d487 100644
--- a/pkgs/tools/misc/qmake2cmake/default.nix
+++ b/pkgs/tools/misc/qmake2cmake/default.nix
@@ -13,6 +13,7 @@
 buildPythonPackage rec {
   pname = "qmake2cmake";
   version = "1.0.6";
+  format = "setuptools";
 
   src = fetchgit {
     url = "https://codereview.qt-project.org/qt/qmake2cmake";
diff --git a/pkgs/tools/misc/remote-exec/default.nix b/pkgs/tools/misc/remote-exec/default.nix
index 1abd7ab6bbb8..4c0ddc47b679 100644
--- a/pkgs/tools/misc/remote-exec/default.nix
+++ b/pkgs/tools/misc/remote-exec/default.nix
@@ -16,6 +16,7 @@
 buildPythonApplication rec {
   pname = "remote-exec";
   version = "1.13.3";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "remote-cli";
diff --git a/pkgs/tools/misc/thinkpad-scripts/default.nix b/pkgs/tools/misc/thinkpad-scripts/default.nix
index ec0c74aa0131..605e35f9c5af 100644
--- a/pkgs/tools/misc/thinkpad-scripts/default.nix
+++ b/pkgs/tools/misc/thinkpad-scripts/default.nix
@@ -8,6 +8,7 @@
 buildPythonPackage rec {
   pname = "thinkpad-scripts";
   version = "4.12.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "martin-ueding";
diff --git a/pkgs/tools/misc/vimwiki-markdown/default.nix b/pkgs/tools/misc/vimwiki-markdown/default.nix
index eff91e14f940..7a9674023a5a 100644
--- a/pkgs/tools/misc/vimwiki-markdown/default.nix
+++ b/pkgs/tools/misc/vimwiki-markdown/default.nix
@@ -8,6 +8,7 @@
 
 buildPythonApplication rec {
   version = "0.4.1";
+  format = "setuptools";
   pname = "vimwiki-markdown";
 
   src = fetchPypi {
diff --git a/pkgs/tools/misc/xflux/gui.nix b/pkgs/tools/misc/xflux/gui.nix
index dd511b708481..cdbef0d9ddbf 100644
--- a/pkgs/tools/misc/xflux/gui.nix
+++ b/pkgs/tools/misc/xflux/gui.nix
@@ -18,6 +18,7 @@
 buildPythonApplication rec {
   pname = "xflux-gui";
   version = "1.2.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     repo = "xflux-gui";
diff --git a/pkgs/tools/misc/youtube-dl/default.nix b/pkgs/tools/misc/youtube-dl/default.nix
index 1edb287d4121..b4717bd43da9 100644
--- a/pkgs/tools/misc/youtube-dl/default.nix
+++ b/pkgs/tools/misc/youtube-dl/default.nix
@@ -29,6 +29,7 @@ buildPythonPackage rec {
   # downloads break constantly. Because of that, updates should always be backported
   # to the latest stable release.
   version = "2021.12.17";
+  format = "setuptools";
 
   src = fetchurl {
     url = "https://yt-dl.org/downloads/${version}/${pname}-${version}.tar.gz";
diff --git a/pkgs/tools/networking/gandi-cli/default.nix b/pkgs/tools/networking/gandi-cli/default.nix
index 42b9d4ed0522..7bee2bc59db5 100644
--- a/pkgs/tools/networking/gandi-cli/default.nix
+++ b/pkgs/tools/networking/gandi-cli/default.nix
@@ -11,6 +11,7 @@
 buildPythonApplication rec {
   pname = "gandi-cli";
   version = "1.6";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "Gandi";
diff --git a/pkgs/tools/networking/gp-saml-gui/default.nix b/pkgs/tools/networking/gp-saml-gui/default.nix
index 90a4fc36e7d5..9d52127ba5d8 100644
--- a/pkgs/tools/networking/gp-saml-gui/default.nix
+++ b/pkgs/tools/networking/gp-saml-gui/default.nix
@@ -14,6 +14,7 @@
 buildPythonPackage rec {
   pname = "gp-saml-gui";
   version = "0.1+20240731-${lib.strings.substring 0 7 src.rev}";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "dlenski";
diff --git a/pkgs/tools/networking/maubot/default.nix b/pkgs/tools/networking/maubot/default.nix
index a5a7e9dc0bed..b7be40c88d40 100644
--- a/pkgs/tools/networking/maubot/default.nix
+++ b/pkgs/tools/networking/maubot/default.nix
@@ -23,6 +23,7 @@ let
       sqlalchemy = final.buildPythonPackage rec {
         pname = "SQLAlchemy";
         version = "1.3.24";
+        format = "setuptools";
 
         src = fetchPypi {
           inherit pname version;
@@ -42,6 +43,7 @@ let
   maubot = python.pkgs.buildPythonPackage rec {
     pname = "maubot";
     version = "0.5.1";
+    format = "setuptools";
     disabled = python.pythonOlder "3.10";
 
     src = fetchPypi {
diff --git a/pkgs/tools/networking/nxdomain/default.nix b/pkgs/tools/networking/nxdomain/default.nix
index 8c5c5897296e..87a3a2bc279a 100644
--- a/pkgs/tools/networking/nxdomain/default.nix
+++ b/pkgs/tools/networking/nxdomain/default.nix
@@ -9,6 +9,7 @@
 buildPythonApplication rec {
   pname = "nxdomain";
   version = "1.0.2";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/tools/networking/s3cmd/default.nix b/pkgs/tools/networking/s3cmd/default.nix
index 96dae1f4c682..888f4d4ef72f 100644
--- a/pkgs/tools/networking/s3cmd/default.nix
+++ b/pkgs/tools/networking/s3cmd/default.nix
@@ -9,6 +9,7 @@
 buildPythonApplication rec {
   pname = "s3cmd";
   version = "2.4.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "s3tools";
diff --git a/pkgs/tools/networking/spoof-mac/default.nix b/pkgs/tools/networking/spoof-mac/default.nix
index 6ef25c5055bc..9cdadce0996b 100644
--- a/pkgs/tools/networking/spoof-mac/default.nix
+++ b/pkgs/tools/networking/spoof-mac/default.nix
@@ -8,6 +8,7 @@
 buildPythonPackage {
   pname = "spoof-mac";
   version = "unstable-2018-01-27";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "feross";
diff --git a/pkgs/tools/networking/telepresence/default.nix b/pkgs/tools/networking/telepresence/default.nix
index a02f6e5c9936..8ceb33ad19ea 100644
--- a/pkgs/tools/networking/telepresence/default.nix
+++ b/pkgs/tools/networking/telepresence/default.nix
@@ -21,6 +21,7 @@ in
 pythonPackages.buildPythonPackage rec {
   pname = "telepresence";
   version = "0.109";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "telepresenceio";
diff --git a/pkgs/tools/package-management/fusesoc/default.nix b/pkgs/tools/package-management/fusesoc/default.nix
index ccadb2a71a1f..d0bc6297d8fc 100644
--- a/pkgs/tools/package-management/fusesoc/default.nix
+++ b/pkgs/tools/package-management/fusesoc/default.nix
@@ -16,6 +16,7 @@
 buildPythonPackage rec {
   pname = "fusesoc";
   version = "2.2.1";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/tools/package-management/nix-update-source/default.nix b/pkgs/tools/package-management/nix-update-source/default.nix
index 392a580e45b1..2e57d68dd1a3 100644
--- a/pkgs/tools/package-management/nix-update-source/default.nix
+++ b/pkgs/tools/package-management/nix-update-source/default.nix
@@ -10,6 +10,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "nix-update-source";
   version = "0.7.0";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     hash = "sha256-+49Yb+rZ3CzFnwEpwj5xrcMUVBiYOJtCk9YeZ15IM/U=";
diff --git a/pkgs/tools/package-management/protontricks/default.nix b/pkgs/tools/package-management/protontricks/default.nix
index 5aa70a2d9527..2326c6948dab 100644
--- a/pkgs/tools/package-management/protontricks/default.nix
+++ b/pkgs/tools/package-management/protontricks/default.nix
@@ -20,6 +20,7 @@
 buildPythonApplication rec {
   pname = "protontricks";
   version = "1.12.1";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "Matoking";
diff --git a/pkgs/tools/security/chipsec/default.nix b/pkgs/tools/security/chipsec/default.nix
index 086a59d7a781..a4385dda054f 100644
--- a/pkgs/tools/security/chipsec/default.nix
+++ b/pkgs/tools/security/chipsec/default.nix
@@ -12,6 +12,7 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "chipsec";
   version = "1.10.6";
+  format = "setuptools";
 
   disabled = !stdenv.hostPlatform.isLinux;
 
diff --git a/pkgs/tools/security/pass/extensions/import.nix b/pkgs/tools/security/pass/extensions/import.nix
index 684eff5c88f2..cb0b836bf03e 100644
--- a/pkgs/tools/security/pass/extensions/import.nix
+++ b/pkgs/tools/security/pass/extensions/import.nix
@@ -9,6 +9,7 @@
 python3Packages.buildPythonApplication rec {
   pname = "pass-import";
   version = "3.5";
+  format = "setuptools";
 
   src = fetchurl {
     url = "https://github.com/roddhjav/${pname}/releases/download/v${version}/${pname}-${version}.tar.gz";
diff --git a/pkgs/tools/system/cm-rgb/default.nix b/pkgs/tools/system/cm-rgb/default.nix
index 5a52a1527bbe..2348953521de 100644
--- a/pkgs/tools/system/cm-rgb/default.nix
+++ b/pkgs/tools/system/cm-rgb/default.nix
@@ -16,6 +16,7 @@
 buildPythonApplication rec {
   pname = "cm-rgb";
   version = "0.3.6";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "gfduszynski";
diff --git a/pkgs/tools/system/minijail/tools.nix b/pkgs/tools/system/minijail/tools.nix
index 54acc4a1193a..4614b7a16370 100644
--- a/pkgs/tools/system/minijail/tools.nix
+++ b/pkgs/tools/system/minijail/tools.nix
@@ -11,6 +11,7 @@ let
 in
 
 buildPythonApplication {
+  format = "setuptools";
   pname = "minijail-tools";
   inherit (minijail) version src;
 
diff --git a/pkgs/tools/text/mir-qualia/default.nix b/pkgs/tools/text/mir-qualia/default.nix
index 88a688c1f0a3..95da7c83e755 100644
--- a/pkgs/tools/text/mir-qualia/default.nix
+++ b/pkgs/tools/text/mir-qualia/default.nix
@@ -7,6 +7,7 @@
 pythonPackages.buildPythonApplication rec {
   pname = "mir.qualia";
   version = "2.0.0";
+  format = "setuptools";
   doCheck = false; # 2.0.0-released pytests are broken
 
   buildInputs = with pythonPackages; [ pytest ];
diff --git a/pkgs/tools/virtualization/ec2instanceconnectcli/default.nix b/pkgs/tools/virtualization/ec2instanceconnectcli/default.nix
index 050f93a052a6..4794c17522a1 100644
--- a/pkgs/tools/virtualization/ec2instanceconnectcli/default.nix
+++ b/pkgs/tools/virtualization/ec2instanceconnectcli/default.nix
@@ -9,6 +9,7 @@
 buildPythonPackage rec {
   pname = "ec2instanceconnectcli";
   version = "1.0.3";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
diff --git a/pkgs/tools/virtualization/google-compute-engine/default.nix b/pkgs/tools/virtualization/google-compute-engine/default.nix
index fe49936482c0..0fd448ebb28f 100644
--- a/pkgs/tools/virtualization/google-compute-engine/default.nix
+++ b/pkgs/tools/virtualization/google-compute-engine/default.nix
@@ -13,6 +13,7 @@
 buildPythonPackage rec {
   pname = "google-compute-engine";
   version = "20190124";
+  format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "GoogleCloudPlatform";
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 5696d02af7e5..7291fcd58710 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -7348,7 +7348,10 @@ self: super: with self; {
 
   jsonmerge = callPackage ../development/python-modules/jsonmerge { };
 
-  jsonnet = buildPythonPackage { inherit (pkgs.jsonnet) name src; };
+  jsonnet = buildPythonPackage {
+    inherit (pkgs.jsonnet) name src;
+    format = "setuptools";
+  };
 
   jsonpatch = callPackage ../development/python-modules/jsonpatch { };