{ lib, buildPythonPackage, fetchPypi, python }: buildPythonPackage rec { pname = "pytz"; version = "2018.3"; src = fetchPypi { inherit pname version; sha256 = "410bcd1d6409026fbaa65d9ed33bf6dd8b1e94a499e32168acfc7b332e4095c0"; }; checkPhase = '' ${python.interpreter} -m unittest discover -s pytz/tests ''; meta = with lib; { description = "World timezone definitions, modern and historical"; homepage = "http://pythonhosted.org/pytz"; license = licenses.mit; maintainers = with maintainers; [ dotlambda ]; }; }