anchor.diff:      nbconvert
       nbformat
       pproxy
  +    qiskit-aer
       vcrpy
     ] ++ lib.optionals (!withVisualization) visualizationPackages;
   
  
positive.code: in
  buildPythonPackage rec {
    pname = "qiskit-ibmq-provider";
    version = "0.11.1";
  
    disabled = pythonOlder "3.6";
  
  
negative.code: , nbconvert
  , nbformat
  , pproxy
  , qiskit-aer
  , vcrpy
  }:
  
  