anchor.diff:      sphinx
     ];
   
  -  checkPhase = ''
  -    pytest
  -  '';
  +  # ParserError: Could not parse timezone expression "America/Nuuk"
  +  disabledTests = [
  +    "test_parse_tz_name_zzz"
  +  ];
   
     meta = with lib; {
       description = "Python library for date manipulation";
  
positive.code: 
    checkInputs = [
      dateparser
      pytest
      pytestcov
      pytest-mock
      pytz
  
negative.code: { stdenv, lib, buildPythonPackage, fetchPypi, isPy27
  , nose, chai, simplejson, backports_functools_lru_cache
  , python-dateutil, pytz, pytest-mock, sphinx, dateparser, pytestcov
  , pytestCheckHook
  }:
  
  buildPythonPackage rec {
  