{ stdenv, buildPythonPackage, fetchPypi , dateutil, mock, isPy3k }: buildPythonPackage rec { pname = "aniso8601"; version = "4.1.0"; meta = with stdenv.lib; { description = "Parses ISO 8601 strings."; homepage = "https://bitbucket.org/nielsenb/aniso8601"; license = licenses.bsd3; }; propagatedBuildInputs = [ dateutil ]; checkInputs = stdenv.lib.optional (!isPy3k) mock; src = fetchPypi { inherit pname version; sha256 = "1x49k287ky1spv3msc9fwmc7ydyw6rlcr14nslgcmpjfn3pgzh03"; }; }