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path: root/nixpkgs/pkgs/development/interpreters/python/tests/test_nix_pythonprefix/default.nix
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{ interpreter, writeText, runCommand }:

let

  python = let
    packageOverrides = self: super: {
      typeddep = self.callPackage ./typeddep {};
    };
  in interpreter.override {inherit packageOverrides; self = python;};

  pythonEnv = python.withPackages(ps: [
    ps.typeddep
    ps.mypy
  ]);

  pythonScript = writeText "myscript.py" ''
    from typeddep import util
    s: str = util.echo("hello")
    print(s)
  '';

in runCommand "${interpreter.name}-site-prefix-mypy-test" {} ''
  ${pythonEnv}/bin/mypy ${pythonScript}
  touch $out
''