anchor.diff:  , jinja2
   , Mako
   , markupsafe
  +, mock
   , python-dateutil
   , pytz
   , six
  
positive.code: 
    checkInputs = [
      flask_testing
    ];
  
    passthru.tests = {
      inherit (nixosTests) ihatemoney;
  
negative.code: { buildPythonPackage, lib, fetchFromGitHub, isPy27, nixosTests
  , alembic
  , aniso8601
  , Babel
  