anchor.diff: -{ buildPythonPackage, fetchurl, stdenv, isPy27
  +{ buildPythonPackage, fetchurl, fetchPypi, stdenv, isPy27
   , nose, pillow, prettytable, pyyaml, dateutil, gdata
   , requests, mechanize, feedparser, lxml, gnupg, pyqt5
   , libyaml, simplejson, cssselect, futures, pdfminer
  
positive.code: , unidecode
  }:
  
  buildPythonPackage rec {
    pname = "weboob";
    version = "1.3";
    disabled = ! isPy27;
  
negative.code: 
    propagatedBuildInputs = [ pillow prettytable pyyaml dateutil
      gdata requests mechanize feedparser lxml gnupg pyqt5 libyaml
      simplejson cssselect futures pdfminer termcolor
      google_api_python_client_python27 html2text unidecode ];
  
    checkPhase = ''
      nosetests
  