python3Packages.tracing: drop because missing source code (#471663)

pkgs/development/python-modules/tracing/default.nix

@@ -1,29 +0,0 @@
-{
-  lib,
-  buildPythonPackage,
-  fetchurl,
-  sphinx,
-}:
-
-buildPythonPackage rec {
-  pname = "tracing";
-  version = "0.8";
-  format = "setuptools";
-
-  src = fetchurl {
-    url = "http://code.liw.fi/debian/pool/main/p/python-tracing/python-tracing_${version}.orig.tar.gz";
-    sha256 = "1l4ybj5rvrrcxf8csyq7qx52izybd502pmx70zxp46gxqm60d2l0";
-  };
-
-  buildInputs = [ sphinx ];
-
-  # error: invalid command 'test'
-  doCheck = false;
-
-  meta = {
-    homepage = "https://liw.fi/tracing/";
-    description = "Python debug logging helper";
-    license = lib.licenses.gpl3;
-    maintainers = [ ];
-  };
-}

pkgs/top-level/python-aliases.nix

@@ -480,6 +480,7 @@ mapAliases {
   tikzplotlib = throw "tikzplotlib was removed because it is incompatible with recent versions of matplotlib and webcolors"; # added 2025-11-11
   torchtnt-nightly = throw "'torchtnt-nightly' was only needed as a test dependency for 'torcheval', but these tests are no longer run"; # added 2025-11-12
   torrent_parser = throw "'torrent_parser' has been renamed to/replaced by 'torrent-parser'"; # Converted to throw 2025-10-29
+  tracing = throw "'tracing' has been removed because its source code has been removed"; # Added 2025-12-17
   treeo = throw "treeo has been removed because it has been marked as broken since 2023."; # Added 2025-10-11
   treex = throw "treex has been removed because it has transitively been marked as broken since 2023."; # Added 2025-10-11
   trezor_agent = throw "'trezor_agent' has been renamed to/replaced by 'trezor-agent'"; # Converted to throw 2025-10-29

pkgs/top-level/python-packages.nix

@@ -19081,8 +19081,6 @@ self: super: with self; {
 
   tracerite = callPackage ../development/python-modules/tracerite { };
 
-  tracing = callPackage ../development/python-modules/tracing { };
-
   trackpy = callPackage ../development/python-modules/trackpy { };
 
   trafilatura = callPackage ../development/python-modules/trafilatura { };