@gen_test
def test_asyncio_future(self):
# Test that we can yield an asyncio future from a tornado coroutine.
- # Without 'yield from', we must wrap coroutines in ensure_future,
- # which was introduced during Python 3.4, deprecating the prior "async".
- if hasattr(asyncio, "ensure_future"):
- ensure_future = asyncio.ensure_future
- else:
- # async is a reserved word in Python 3.7
- ensure_future = getattr(asyncio, "async")
-
- x = yield ensure_future(
+ # Without 'yield from', we must wrap coroutines in ensure_future.
+ x = yield asyncio.ensure_future(
asyncio.get_event_loop().run_in_executor(None, lambda: 42)
)
self.assertEqual(x, 42)