anchor.diff:    ];
   
     checkInputs = [
  +    eventlet
       oslotest
       pytestCheckHook
     ];
  
positive.code: 
  buildPythonPackage rec {
    pname = "oslo-log";
    version = "5.0.0";
    format = "setuptools";
  
    disabled = pythonOlder "3.6";
  
negative.code:   src = fetchPypi {
      pname = "oslo.log";
      inherit version;
      hash = "sha256-+2Xy+dJEI/pt1urY7NIfZlxi4P2fkL8xHkwVO1+Kt+o=";
    };
  
    propagatedBuildInputs = [
  