python3: expose packageOverrides in passthru

This allows (manually) composing packageOverrides, like so:

    python3.override {
      packageOverrides =
        lib.composeExtensions python3.packageOverrides (final: super: { ... });
    }

This is still not great, but without this, you can't use
packageOverrides twice at all, because the second use just clobbers
the first with no way to make sure the first override is applied as
well.

1 files changed, 1 insertions, 1 deletions

diff --git a/nixpkgs/pkgs/development/interpreters/python/default.nix b/nixpkgs/pkgs/development/interpreters/python/default.nix
index 099632b1e853..56bf14183681 100644
--- a/nixpkgs/pkgs/development/interpreters/python/default.nix
+++ b/nixpkgs/pkgs/development/interpreters/python/default.nix
@@ -40,7 +40,7 @@ with pkgs;
         pkgs = pythonPackages;
         interpreter = "${self}/bin/${executable}";
         inherit executable implementation libPrefix pythonVersion sitePackages;
-        inherit sourceVersion;
+        inherit sourceVersion packageOverrides;
         pythonAtLeast = lib.versionAtLeast pythonVersion;
         pythonOlder = lib.versionOlder pythonVersion;
         inherit hasDistutilsCxxPatch pythonForBuild;