{ lib, buildPythonPackage, fetchPypi , dateutil, mock, isPy3k }: buildPythonPackage rec { pname = "aniso8601"; version = "8.1.1"; meta = with lib; { description = "Parses ISO 8601 strings."; homepage = "https://bitbucket.org/nielsenb/aniso8601"; license = licenses.bsd3; }; propagatedBuildInputs = [ dateutil ]; checkInputs = lib.optional (!isPy3k) mock; src = fetchPypi { inherit pname version; sha256 = "be08b19c19ca527af722f2d4ba4dc569db292ec96f7de963746df4bb0bff9250"; }; }