anchor.diff:  
   buildPythonPackage rec {
     pname = "qiskit-ignis";
  -  version = "0.4.0";
  +  version = "0.5.1";
   
     disabled = pythonOlder "3.6";
   
  
positive.code: , qiskit-terra
  , scikitlearn
  , scipy
    # Check Inputs
  , pytestCheckHook
  , ddt
  
negative.code:   ];
    disabledTests = [
      "test_tensored_meas_cal_on_circuit" # Flaky test, occasionally returns result outside bounds
      "test_qv_fitter" # execution hangs, ran for several minutes
    ];
  
    meta = with lib; {
  