buildPython*: extend overrideStdenvCompat to fixed-point arguments (#477208)

          optional-dependencies

          ;

        updateScript = nix-update-script { };

        ${if attrs ? stdenv then "__stdenvPythonCompat" else null} = attrs.stdenv;

      }

      // attrs.passthru or { };

      f':

      lib.mirrorFunctionArgs f (

        args:

        if !(lib.isFunction args) && (args ? stdenv) then

        let

          result = f args;

          getName = x: x.pname or (lib.getName (x.name or "<unnamed>"));

          applyMsgStdenvArg =

            name:

            lib.warnIf (lib.oldestSupportedReleaseIsAtLeast 2511) ''

            ${

              args.name or args.pname or "<unnamed>"

            }: Passing `stdenv` directly to `buildPythonPackage` or `buildPythonApplication` is deprecated. You should use their `.override` function instead, e.g:

              ${name}: Passing `stdenv` directly to `buildPythonPackage` or `buildPythonApplication` is deprecated. You should use their `.override` function instead, e.g:

                buildPythonPackage.override { stdenv = customStdenv; } { }

          '' (f'.override { inherit (args) stdenv; } (removeAttrs args [ "stdenv" ]))

            '';

        in

        if lib.isFunction args && result ? __stdenvPythonCompat then

          # Less reliable, as constructing with the wrong `stdenv` might lead to evaluation errors in the package definition.

          f'.override { stdenv = applyMsgStdenvArg (getName result) result.__stdenvPythonCompat; } (

            finalAttrs: removeAttrs (args finalAttrs) [ "stdenv" ]

          )

        else if (!lib.isFunction args) && (args ? stdenv) then

          # More reliable, but only works when args is not `(finalAttrs: { })`

          f'.override { stdenv = applyMsgStdenvArg (getName args) args.stdenv; } (

            removeAttrs args [ "stdenv" ]

          )

        else

          f args

          result

      )

      // {

        # Preserve the effect of overrideStdenvCompat when calling `buildPython*.override`.