diff options
Diffstat (limited to 'Lib/asyncio/futures.py')
| -rw-r--r-- | Lib/asyncio/futures.py | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Lib/asyncio/futures.py b/Lib/asyncio/futures.py index 4a56f32..0e0e696 100644 --- a/Lib/asyncio/futures.py +++ b/Lib/asyncio/futures.py @@ -353,6 +353,9 @@ def _chain_future(source, destination): source_loop.call_soon_threadsafe(source.cancel) def _call_set_state(source): + if (destination.cancelled() and + dest_loop is not None and dest_loop.is_closed()): + return if dest_loop is None or dest_loop is source_loop: _set_state(destination, source) else: |