nixpkgs/pkgs/development/python-modules/typing-extensions/default.nix


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{ lib
, buildPythonPackage
, fetchPypi
, flit-core
, pythonOlder
}:

buildPythonPackage rec {
  pname = "typing-extensions";
  version = "4.8.0";
  pyproject = true;

  disabled = pythonOlder "3.8";

  src = fetchPypi {
    pname = "typing_extensions";
    inherit version;
    hash = "sha256-345DOenLdzV1WMvbzsozwwNxTPhh0e7xXhBwBVrot+8=";
  };

  nativeBuildInputs = [
    flit-core
  ];

  # Tests are not part of PyPI releases. GitHub source can't be used
  # as it ends with an infinite recursion
  doCheck = false;

  pythonImportsCheck = [
    "typing_extensions"
  ];

  meta = with lib; {
    description = "Backported and Experimental Type Hints for Python";
    changelog = "https://github.com/python/typing_extensions/blob/${version}/CHANGELOG.md";
    homepage = "https://github.com/python/typing";
    license = licenses.psfl;
    maintainers = with maintainers; [ pmiddend ];
  };
}