{ lib , buildPythonPackage , fetchFromGitHub , cython , libyaml , isPy27 , python }: buildPythonPackage rec { pname = "PyYAML"; version = "5.4.1.1"; src = fetchFromGitHub { owner = "yaml"; repo = "pyyaml"; rev = version; sha256 = "1v386gzdvsjg0mgix6v03rd0cgs9dl81qvn3m547849jm8r41dx8"; }; nativeBuildInputs = [ cython ]; buildInputs = [ libyaml ]; checkPhase = '' runHook preCheck PYTHONPATH=""tests/lib":$PYTHONPATH" ${python.interpreter} -m test_all runHook postCheck ''; pythonImportsCheck = [ "yaml" ]; meta = with lib; { description = "The next generation YAML parser and emitter for Python"; homepage = "https://github.com/yaml/pyyaml"; license = licenses.mit; }; }