anchor.diff:  , stdenv
   , buildPythonPackage
   , fetchPypi
  +, eventlet
   , oslo-config
   , oslo-context
   , oslo-serialization
  
positive.code:   ];
  
    checkInputs = [
      oslotest
      pytestCheckHook
    ];
  
negative.code:   src = fetchPypi {
      pname = "oslo.log";
      inherit version;
      hash = "sha256-+2Xy+dJEI/pt1urY7NIfZlxi4P2fkL8xHkwVO1+Kt+o=";
    };
  
    propagatedBuildInputs = [
  