anchor.diff:        license = licenses.free;
       };
     } else null;
  -
  +  
     funcsigs = buildPythonPackage rec {
       name = "funcsigs-1.0.2";
   
  
positive.code:       description = "TensorFlow helps the tensors flow (no gpu support)";
        homepage = http://tensorflow.org;
        license = licenses.asl20;
      };
    };
  
  
negative.code:       broken = true;
      };
    };
    
    mock = buildPythonPackage (rec {
      name = "mock-2.0.0";
  
  