anchor.diff:    pname = "apache-airflow";
     inherit version;
     src = airflow-src;
  +
  +  disabled = pythonOlder "3.6";
   
     propagatedBuildInputs = [
       alembic
  
positive.code: , mkYarnPackage
  }:
  let
  
    version = "2.1.4";
  
    airflow-src = fetchFromGitHub rec {
  
negative.code: , colorlog
  , croniter
  , cryptography
  , dataclasses
  , dill
  , flask
  , flask_login
  , flask_wtf
  , flask-appbuilder
  , flask-caching
  , GitPython
  , graphviz
  , gunicorn
  