Merge pull request #327066 from mjoerg/tahoe-lafs-python-3.11

pkgs/tools/networking/p2p/tahoe-lafs/default.nix

@@ -1,10 +1,36 @@
-{ lib, nettools, python3Packages, texinfo, fetchFromGitHub }:
+{ lib, nettools, python311, texinfo, fetchFromGitHub }:
 
 # FAILURES: The "running build_ext" phase fails to compile Twisted
 # plugins, because it tries to write them into Twisted's (immutable)
 # store path. The problem appears to be non-fatal, but there's probably
 # some loss of functionality because of it.
 
+let
+  # Tahoe-LAFS unstable-2021-07-09 is incompatible with Python 3.12, and
+  # uses eliot in a way incompatible after version 1.14.0.
+  # These versions should be unpinned, when updating Tahoe-LAFS to a more recent version.
+  python = python311.override {
+    packageOverrides = self: super: {
+      eliot = super.eliot.overridePythonAttrs (oldAttrs: rec {
+        version = "1.14.0";
+
+        src = fetchFromGitHub {
+          owner = "itamarst";
+          repo = "eliot";
+          rev = "refs/tags/${version}";
+          hash = "sha256-1QE/s8P2g7DGIcuT+/AikAaWMTafNWn4BRZqpBn5ghk=";
+        };
+
+        disabledTests = [
+          "test_default"
+          "test_large_numpy_array"
+          "test_numpy"
+        ];
+      });
+    };
+  };
+  python3Packages = python.pkgs;
+in
 python3Packages.buildPythonApplication rec {
   pname = "tahoe-lafs";
   version = "unstable-2021-07-09";