anchor.diff:  , termcolor
   , unicodecsv
   , werkzeug
  -, pytest
  +, pytestCheckHook
   , freezegun
   , mkYarnPackage
   }:
  
positive.code:   # allow for gunicorn processes to have access to python packages
    makeWrapperArgs = [ "--prefix PYTHONPATH : $PYTHONPATH" ];
  
    checkPhase = ''
     export HOME=$(mktemp -d)
     export AIRFLOW_HOME=$HOME
     export AIRFLOW__CORE__UNIT_TEST_MODE=True
  
negative.code:    airflow version
     airflow db init
     airflow db reset -y
    '';
  
    pytestFlagsArray = [
      "tests/core/test_core.py"
    ];
  
    postInstall = ''
      cp -rv ${airflow-frontend}/static/dist $out/lib/${python.libPrefix}/site-packages/airflow/www/static
  