diff options
Diffstat (limited to 'Lib/asyncio')
| -rw-r--r-- | Lib/asyncio/futures.py | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/Lib/asyncio/futures.py b/Lib/asyncio/futures.py index bcd4d16b9d..9ca8d8458b 100644 --- a/Lib/asyncio/futures.py +++ b/Lib/asyncio/futures.py @@ -2,7 +2,7 @@ __all__ = ['CancelledError', 'TimeoutError', 'InvalidStateError', - 'Future', 'wrap_future', + 'Future', 'wrap_future', 'isfuture', ] import concurrent.futures._base @@ -117,7 +117,8 @@ def isfuture(obj): itself as duck-type compatible by setting _asyncio_future_blocking. See comment in Future for more details. """ - return getattr(obj, '_asyncio_future_blocking', None) is not None + return (hasattr(obj.__class__, '_asyncio_future_blocking') and + obj._asyncio_future_blocking is not None) class Future: |