anchor.diff:  
   buildPythonPackage rec {
     pname = "qiskit-aer";
  -  version = "0.5.1";
  +  version = "0.5.2";
   
     disabled = pythonOlder "3.5";
   
  
positive.code:     repo = "qiskit-aer";
      rev = version;
      fetchSubmodules = true; # fetch muparserx and other required libraries
      sha256 = "0pbi8ldz8f1zm7pf2n5229g6kccriq21f24q9cb7bd4j5gdky5sk";
    };
  
    nativeBuildInputs = [
  
negative.code:     pytestCheckHook
    ];
    dontUseSetuptoolsCheck = true;  # Otherwise runs tests twice
    disabledTests = [
      # broken with cvxpy >= 1.1.0, see https://github.com/Qiskit/qiskit-aer/issues/779.
      # TODO: Remove once resolved, probably next qiskit-aer version
      "test_clifford"
    ];
  
    preCheck = ''
      # Tests include a compiled "circuit" which is auto-built in $HOME
  