anchor.diff:  
     nativeBuildInputs = [ pyqt5 ];
   
  -  propagatedBuildInputs = [ pillow prettytable pyyaml dateutil
  -    gdata requests mechanize feedparser lxml gnupg pyqt5 libyaml
  -    simplejson cssselect pdfminer termcolor
  -    google_api_python_client html2text unidecode ];
  +  propagatedBuildInputs = [
  +    cssselect
  +    dateutil
  +    feedparser
  +    gdata
  +    gnupg
  +    google_api_python_client
  +    html2text
  +    libyaml
  +    lxml
  +    mechanize
  +    pdfminer
  +    pillow
  +    prettytable
  +    pyqt5
  +    pyyaml
  +    requests
  +    simplejson
  +    termcolor
  +    unidecode
  +  ] ++ lib.optionals isPy27 [ futures ];
   
     checkPhase = ''
       nosetests
  
positive.code:   meta = {
      homepage = http://weboob.org;
      description = "Collection of applications and APIs to interact with websites without requiring the user to open a browser";
      license = stdenv.lib.licenses.agpl3;
    };
  }
  
negative.code: { lib, buildPythonPackage, fetchPypi, isPy27
  , cssselect
  , dateutil
  , feedparser
  , futures
  , gdata
  , gnupg
  , google_api_python_client
  , html2text
  , libyaml
  , lxml
  , mechanize
  , nose
  , pdfminer
  , pillow
  , prettytable
  , pyqt5
  , pyyaml
  , requests
  , simplejson
  , termcolor
  , unidecode
  }:
  
  