anchor.diff:      owner = "Qiskit";
       repo = "qiskit-aqua";
       rev = version;
  -    sha256 = "080m5nsy3ia6bcdypq5d3ijb7762yl1l9llygmxsi6si449zl2cp";
  +    sha256 = "0yykw6k1rb3f2ihcp0y9pb0695mcmy29nyqlj89qs4da0503vxvh";
     };
   
     # Optional packages: pyscf (see below NOTE) & pytorch. Can install via pip/nix if needed.
     propagatedBuildInputs = [
  +    # cplex
       cvxopt
       docplex
       dlx # Python Dancing Links package
  
positive.code:     "--ignore=test/chemistry/test_qeom_ee.py"
      "--ignore=test/chemistry/test_qeom_vqe.py"
      "--ignore=test/chemistry/test_vqe_uccsd_adapt.py"
  
      # Following tend to be slow tests, all pass
      "--ignore=test/aqua/test_vqc.py"
      "--ignore=test/aqua/test_hhl.py"
      "--ignore=test/aqua/test_qgan.py"
      "--ignore=test/aqua/test_mcr.py"
      "--ignore=test/aqua/test_mcu1.py"
      "--ignore=test/aqua/test_vqe.py"
    ];
    disabledTests = [
      # Disabled due to missing pyscf
      "test_validate" # test/chemistry/test_inputparser.py
  
      # Disabling slow tests > 10 seconds
      "test_clique_vqe"
      "test_delta_3_qasm"
      "test_evaluate_qasm_mode"
      "test_evolve_1_suzuki"
      "test_exact_cover_vqe"
      "test_exchangedata"
      "test_expected_value_0_statevector"
      "test_expected_value_1_qasm"
      "test_expected_value_2_statevector"
      "test_graph_partition_vqe"
      "test_lookup_rotation"
      "test_mct_with_dirty_ancillae_15"
      "test_mcrz_11"
      "test_measurement_error_mitigation_auto_refresh"
      "test_qgan_training"
      "test_qsvm_multiclass"
      "test_shor_factoring_0"
      "test_vertex_cover_vqe"
      "test_vqc_with_raw_feature_vector_on_wine"
      "test_vqe_2_iqpe"
      "test_vqe_qasm"
      "test_wikipedia"
    ];
  
    meta = with lib; {
  
negative.code: , pythonOlder
  , buildPythonPackage
  , fetchFromGitHub
  # , cplex
  , cvxopt
  , dlx
  , docplex
  