def __init__(self, *qargs, **qkeys):
        """Construct an execution queue.

        `qargs` and `qkeys` are passed to the underlying `Queue` object.
        """
        Queue.__init__(self, *qargs, **qkeys)
        self.__current_exec = None
        self.__exec_mutex = threading.Lock()
Construct an execution queue.

        `qargs` and `qkeys` are passed to the underlying `Queue` object.
        
recipes/Python/576965_Multicontext_eg_asynchronous_inline/recipe-576965.py