anchor.diff:    ] ++ lib.optionals isPy27 [ enum34 ];
   
     checkPhase = ''
  -    # disable tests that require mongodb, postresql
  +    # disable tests that require mongodb, postresql, or network
       nosetests \
        -e "mongoengine" \
        -e "pymongo" \
        -e "test_form_upload" \
        -e "test_postgres" \
        -e "geoa" \
  +     -e "test_ajax_fk" \
        flask_admin/tests
     '';
   
  
positive.code:     wtf-peewee
      sqlalchemy
      sqlalchemy-citext
      flask-mongoengine
      flask_sqlalchemy
      flask-babelex
      shapely
      geoalchemy2
      psycopg2
    ];
  
    propagatedBuildInputs = [
  
negative.code: , wtf-peewee
  , sqlalchemy
  , sqlalchemy-citext
  , sqlalchemy-utils
  , flask-mongoengine
  , flask_sqlalchemy
  , flask-babelex
  , shapely
  , geoalchemy2
  , psycopg2
  , arrow
  , colour
  , email_validator
  , flask
  , wtforms
  , isPy27
  