anchor.diff:      };
     };
   
  +  pathspec = buildPythonPackage rec {
  +    pname   = "pathspec";
  +    version = "0.3.4";
  +    name    = "${pname}-${version}";
  +
  +    src = self.fetchPypi {
  +      inherit pname version;
  +      sha256 = "0a37yrr2jhlg8aiynxivh2xqani7l9j725qxzrm7cm7m4rfcl1bn";
  +    };
  +  };
  +
     pathtools = buildPythonPackage rec {
       name = "pathtools-${version}";
       version = "0.1.2";
  
positive.code:     };
    };
  
    paperwork-backend = buildPythonPackage rec {
      name = "paperwork-backend-${version}";
      version = "1.0.6";
  
negative.code:     };
    };
  
    lmdb = buildPythonPackage rec {
      pname = "lmdb";
      version = "0.92";
      name = "${pname}-${version}";
  
      src = self.fetchPypi {
        inherit pname version;
        sha256 = "01nw6r08jkipx6v92kw49z34wmwikrpvc5j9xawdiyg1n2526wrx";
      };
    };
  
    logilab_astng = buildPythonPackage rec {
      name = "logilab-astng-0.24.3";
  
  