handler.py 文件源码

def inlineCallbacks(f,*args, **kwargs):
    # ...
    try:
        gen = f(*args, **kwargs)
    except defer._DefGen_Return:
        raise TypeError(
            "inlineCallbacks requires %r to produce a generator; instead"
            "caught returnValue being used in a non-generator" % (f,))
    if not isinstance(gen, types.GeneratorType):
        raise TypeError(
            "inlineCallbacks requires %r to produce a generator; "
            "instead got %r" % (f, gen))
    return defer._inlineCallbacks(None, gen, defer.Deferred())


# ...
# ...
# ...