anchor.diff:  
   buildPythonPackage rec {
     pname = "oci";
  -  version = "2.75.0";
  +  version = "2.78.0";
     format = "setuptools";
   
     disabled = pythonOlder "3.6";
  
positive.code: 
    postPatch = ''
      substituteInPlace setup.py \
        --replace "configparser==4.0.2 ; python_version < '3'" "configparser" \
        --replace "cryptography>=3.2.1,<=3.4.7" "cryptography" \
        --replace "pyOpenSSL>=17.5.0,<=19.1.0" "pyOpenSSL"
    '';
  
    # Tests fail: https://github.com/oracle/oci-python-sdk/issues/164
  
negative.code:     owner = "oracle";
      repo = "oci-python-sdk";
      rev = "refs/tags/v${version}";
      hash = "sha256-24V9vfuNMxvC5iqluW4xz7WICXbQA89xmiAH6tIDRw0=";
    };
  
    propagatedBuildInputs = [
      certifi
      circuitbreaker
      cryptography
      pyopenssl
      python-dateutil
  