__init__.py 文件源码

def __init__(self, prop, original_class):
        """Like Async, but before it executes the callback or resolves the
        Future, checks if result is a PyMongo class and wraps it in a Motor
        class. E.g., Motor's map_reduce should pass a MotorCollection instead
        of a PyMongo Collection to the Future. Uses the wrap() method on the
        owner object to do the actual wrapping. E.g.,
        Database.create_collection returns a Collection, so MotorDatabase has:

        create_collection = AsyncCommand().wrap(Collection)

        Once Database.create_collection is done, Motor calls
        MotorDatabase.wrap() on its result, transforming the result from
        Collection to MotorCollection, which is passed to the callback or
        Future.

        :Parameters:
        - `prop`: An Async, the async method to call before wrapping its result
          in a Motor class.
        - `original_class`: A PyMongo class to be wrapped.
        """
        super(WrapAsync, self).__init__(prop)
        self.original_class = original_class