mirror of https://github.com/python/cpython
Issue 24004: Support Awaitables (pep 492) in @asyncio.coroutine decorator
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@ -54,9 +54,10 @@ else:
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inspect.CO_COROUTINE)
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try:
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from collections.abc import Coroutine as CoroutineABC
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from collections.abc import Coroutine as CoroutineABC, \
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Awaitable as AwaitableABC
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except ImportError:
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CoroutineABC = None
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CoroutineABC = AwaitableABC = None
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# Check for CPython issue #21209
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@ -192,6 +193,16 @@ def coroutine(func):
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res = func(*args, **kw)
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if isinstance(res, futures.Future) or inspect.isgenerator(res):
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res = yield from res
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elif AwaitableABC is not None:
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# If 'func' returns an Awaitable (new in 3.5) we
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# want to run it.
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try:
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await_meth = res.__await__
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except AttributeError:
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pass
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else:
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if isinstance(res, AwaitableABC):
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res = yield from await_meth()
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return res
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if not _DEBUG:
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