bpo-33505: Optimize asyncio.ensure_future by reordering if conditions (GH-6836) (#7162)
(cherry picked from commit e549c4be5fb010f5faf12236af8faa720a1429be)
Co-authored-by: jimmylai <albert_chs@yahoo.com.tw>
diff --git a/Lib/asyncio/tasks.py b/Lib/asyncio/tasks.py
index 5df1af6..4a9db2a 100644
--- a/Lib/asyncio/tasks.py
+++ b/Lib/asyncio/tasks.py
@@ -542,17 +542,17 @@
If the argument is a Future, it is returned directly.
"""
- if futures.isfuture(coro_or_future):
- if loop is not None and loop is not futures._get_loop(coro_or_future):
- raise ValueError('loop argument must agree with Future')
- return coro_or_future
- elif coroutines.iscoroutine(coro_or_future):
+ if coroutines.iscoroutine(coro_or_future):
if loop is None:
loop = events.get_event_loop()
task = loop.create_task(coro_or_future)
if task._source_traceback:
del task._source_traceback[-1]
return task
+ elif futures.isfuture(coro_or_future):
+ if loop is not None and loop is not futures._get_loop(coro_or_future):
+ raise ValueError('loop argument must agree with Future')
+ return coro_or_future
elif inspect.isawaitable(coro_or_future):
return ensure_future(_wrap_awaitable(coro_or_future), loop=loop)
else: