anchor.diff:      license = lib.licenses.bsd3;
     };
   
  -}+}
  
positive.code: { lib
  , buildPythonPackage
  , fetchPypi
  }:
  
  buildPythonPackage rec {
  
negative.code:     inherit pname version;
      sha256 = "ce3be5d520b4d2c3e5eeb4cd2ef62b9b9ab8ac6b6fedbaa0e39cdb6f50644278";
    };
    
    NIX_CFLAGS_COMPILE = stdenv.lib.optionalString stdenv.isDarwin "-I${libcxx}/include/c++/v1";
    
    # Does not include tests
    doCheck = false;
  
  