anchor.diff:    ];
   
     hardeningDisable = [ "format" ]; # required by yaehmop
  -  # doCheck = false;
  +
     dontUseSetuptoolsBuild = true;
     dontUsePipInstall = true;
     dontUseSetuptoolsCheck = true;
  
positive.code:       owner = pname;
        repo = pname;
        rev = "Release_${versionTag}";
        sha256 = "1k1wvzcd1yfx4nhz3iq2aaadzdk5w6sfcb4imhvm7pkbzij0nicx";
      };
  
    unpackPhase = ''
  
negative.code:   };
  in
  buildPythonPackage rec {
    pname = "rdkit";
    version = "2020.09.5";
  
    src =
      let
  