{ buildPythonPackage , fetchPypi , lib , isPy3k , six , attrs , pytest , testtools }: buildPythonPackage rec { version = "1.1.0"; pname = "effect"; disabled = (!isPy3k); src = fetchPypi { inherit pname version; sha256 = "7affb603707c648b07b11781ebb793a4b9aee8acf1ac5764c3ed2112adf0c9ea"; }; nativeCheckInputs = [ pytest testtools ]; propagatedBuildInputs = [ six attrs ]; checkPhase = '' pytest ''; meta = with lib; { description = "Pure effects for Python"; homepage = "https://github.com/python-effect/effect"; license = licenses.mit; }; }