anchor.diff:  
   buildPythonPackage rec {
     pname = "threadpoolctl";
  -  version = "2.0.0";
  +  version = "2.1.0";
   
     disabled = isPy27;
     format = "flit";
  
positive.code: , isPy27
  , fetchFromGitHub
  , flit
  , pytest
  , pytestcov
  , numpy
  , scipy
  
negative.code:     owner = "joblib";
      repo = pname;
      rev = version;
      sha256 = "0sl6mp3b2gb0dvqkhnkmrp2g3r5c7clyyyxzq44xih6sw1pgx9df";
    };
  
    checkInputs = [ pytestCheckHook pytestcov numpy scipy ];
  
    meta = with lib; {
      homepage = "https://github.com/joblib/threadpoolctl";
  