anchor.diff:    spyder = callPackage ../applications/science/spyder {
       rope = if isPy3k then null else self.rope;
     };
  -
  -
   
     sqlalchemy = callPackage ../development/python-modules/sqlalchemy { };
   
  
positive.code: 
    gensim = callPackage  ../development/python-modules/gensim { };
  
    spotipy = callPackage ../development/python-modules/spotipy { };
  
  });
  
  in fix' (extends overrides packages)
  
negative.code:     };
    });
  
    spotipy = callPackage ../development/python-modules/spotipy { };
  
    Pweave = buildPythonPackage (rec {
      name = "Pweave-0.25";
  
  