anchor.diff:    disabledTestPaths = [
       # Django is too much hasle to setup at the moment
       "testfixtures/tests/test_django"
  -  ];
  -
  -  disabledTests = lib.optionals (pythonAtLeast "3.10") [
  -    # https://github.com/simplistix/testfixtures/issues/168
  -    "test_invalid_communicate_call"
  -    "test_invalid_kill"
  -    "test_invalid_parameters"
  -    "test_invalid_poll"
  -    "test_invalid_send_signal"
  -    "test_invalid_terminate"
  -    "test_invalid_wait_call"
  -    "test_replace_delattr_cant_remove"
  -    "test_replace_delattr_cant_remove_not_strict"
     ];
   
     pytestFlagsArray = [
  
positive.code: 
  buildPythonPackage rec {
    pname = "testfixtures";
    version = "6.18.3";
    format = "setuptools";
    # DO NOT CONTACT upstream.
    # https://github.com/simplistix/ is only concerned with internal CI process.
  
negative.code: 
    src = fetchPypi {
      inherit pname version;
      hash = "sha256-h49hfEEXk/FVwms5MwoJWhzFiETYi83HZ6Zcf8IJa1Q=";
    };
  
    checkInputs = [
      mock
      pytestCheckHook
  