bpo-42582: Remove asyncio._all_tasks_compat(). (GH-23664)
It was used to implement now removed asyncio.Task.all_tasks().
diff --git a/Lib/asyncio/__init__.py b/Lib/asyncio/__init__.py
index eb84bfb..200b14c 100644
--- a/Lib/asyncio/__init__.py
+++ b/Lib/asyncio/__init__.py
@@ -20,10 +20,6 @@
from .threads import *
from .transports import *
-# Exposed for _asynciomodule.c to implement now deprecated
-# Task.all_tasks() method. This function will be removed in 3.9.
-from .tasks import _all_tasks_compat # NoQA
-
__all__ = (base_events.__all__ +
coroutines.__all__ +
events.__all__ +
diff --git a/Lib/asyncio/tasks.py b/Lib/asyncio/tasks.py
index eef7f88..0d3a24b 100644
--- a/Lib/asyncio/tasks.py
+++ b/Lib/asyncio/tasks.py
@@ -61,30 +61,6 @@
if futures._get_loop(t) is loop and not t.done()}
-def _all_tasks_compat(loop=None):
- # Different from "all_task()" by returning *all* Tasks, including
- # the completed ones. Used to implement deprecated "Tasks.all_task()"
- # method.
- if loop is None:
- loop = events.get_event_loop()
- # Looping over a WeakSet (_all_tasks) isn't safe as it can be updated from another
- # thread while we do so. Therefore we cast it to list prior to filtering. The list
- # cast itself requires iteration, so we repeat it several times ignoring
- # RuntimeErrors (which are not very likely to occur). See issues 34970 and 36607 for
- # details.
- i = 0
- while True:
- try:
- tasks = list(_all_tasks)
- except RuntimeError:
- i += 1
- if i >= 1000:
- raise
- else:
- break
- return {t for t in tasks if futures._get_loop(t) is loop}
-
-
def _set_task_name(task, name):
if name is not None:
try: