anchor.diff: -{ buildPythonPackage, fetchPypi, stdenv
  -, nose, pillow, prettytable, pyyaml, dateutil, gdata
  -, requests, mechanize, feedparser, lxml, gnupg, pyqt5
  -, libyaml, simplejson, cssselect, pdfminer
  -, termcolor, google_api_python_client, html2text
  +{ 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
   }:
   
  
positive.code: 
    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 ];
  
    checkPhase = ''
      nosetests
  
negative.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 = lib.licenses.agpl3;
    };
  }
  