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 281fea3..ddb9cde 100644 --- a/Lib/asyncio/futures.py +++ b/Lib/asyncio/futures.py @@ -341,6 +341,9 @@ class Future: raise InvalidStateError('{}: {!r}'.format(self._state, self)) if isinstance(exception, type): exception = exception() + if type(exception) is StopIteration: + raise TypeError("StopIteration interacts badly with generators " + "and cannot be raised into a Future") self._exception = exception self._state = _FINISHED self._schedule_callbacks() |