diff options
Diffstat (limited to 'Lib/asyncio/tasks.py')
| -rw-r--r-- | Lib/asyncio/tasks.py | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/Lib/asyncio/tasks.py b/Lib/asyncio/tasks.py index cd4832c..a0cb884 100644 --- a/Lib/asyncio/tasks.py +++ b/Lib/asyncio/tasks.py @@ -573,10 +573,17 @@ def as_completed(fs, *, loop=None, timeout=None): """ if futures.isfuture(fs) or coroutines.iscoroutine(fs): raise TypeError(f"expect a list of futures, not {type(fs).__name__}") - loop = loop if loop is not None else events.get_event_loop() - todo = {ensure_future(f, loop=loop) for f in set(fs)} + from .queues import Queue # Import here to avoid circular import problem. done = Queue(loop=loop) + + if loop is None: + loop = events.get_event_loop() + else: + warnings.warn("The loop argument is deprecated since Python 3.8, " + "and scheduled for removal in Python 3.10.", + DeprecationWarning, stacklevel=2) + todo = {ensure_future(f, loop=loop) for f in set(fs)} timeout_handle = None def _on_timeout(): @@ -733,6 +740,10 @@ def gather(*coros_or_futures, loop=None, return_exceptions=False): if not coros_or_futures: if loop is None: loop = events.get_event_loop() + else: + warnings.warn("The loop argument is deprecated since Python 3.8, " + "and scheduled for removal in Python 3.10.", + DeprecationWarning, stacklevel=2) outer = loop.create_future() outer.set_result([]) return outer @@ -842,6 +853,10 @@ def shield(arg, *, loop=None): except CancelledError: res = None """ + if loop is not None: + warnings.warn("The loop argument is deprecated since Python 3.8, " + "and scheduled for removal in Python 3.10.", + DeprecationWarning, stacklevel=2) inner = ensure_future(arg, loop=loop) if inner.done(): # Shortcut. |