anchor.diff:    };
   
     easydict = callPackage ../development/python-modules/easydict { };
  -  
  +
     EasyProcess = buildPythonPackage rec {
       name = "EasyProcess-0.2.3";
   
  
positive.code: 
    cymem = callPackage ../development/python-modules/cymem { };
  
    ftfy = callPackage ../development/python-modules/ftfy { };    
  
    murmurhash = callPackage ../development/python-modules/murmurhash { };      
  
    plac = callPackage ../development/python-modules/plac { };        
    
    preshed = callPackage ../development/python-modules/preshed { };
  
    thinc = callPackage ../development/python-modules/thinc { };  
  
    spacy = callPackage ../development/python-modules/spacy { };  
  });
  
  in fix' (extends overrides packages)
  
negative.code:   logfury = buildPythonPackage rec {
      name = "logfury-${version}";
      version = "0.1.2";
  
      src = pkgs.fetchurl {
        url = "mirror://pypi/l/logfury/${name}.tar.gz";
        sha256 = "1lywirv3d1lw691mc4mfpz7ak6r49klri43bbfgdnvsfppxminj2";
      };
  
      buildInputs =
        [ self.funcsigs
          self.six
        ];
  
      meta = with pkgs.stdenv.lib; {
        description = "Logfury is for python library maintainers. It allows for responsible, low-boilerplate logging of method calls.";
        homepage = "https://github.com/ppolewicz/logfury";
  