From b611b6473776bba1c55878a0996e9e1e60118331 Mon Sep 17 00:00:00 2001
From: Cooper Ry Lees <me@wcooperlees.com>
Date: Wed, 13 Jul 2022 05:00:20 +0000
Subject: [PATCH] Move to explicitly creating a new loop
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- >= 3.10 add a warning that `get_event_loop` will not automatically create a loop
- Move to explicit API

Test:
- `python3.11 -m venv --upgrade-deps /tmp/tb`
  - `/tmp/tb/bin/pip install -e .`
  - Install deps and no blackd as aiohttp + yarl can't build still with 3.11
  - https://github.com/aio-libs/aiohttp/issues/6600
- `export PYTHONWARNINGS=error`
```
cooper@l33t:~/repos/black$ /tmp/tb/bin/black .
All done! ✨ 🍰 ✨
44 files left unchanged.
```

Fixes #3110
---
 src/black/__init__.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/black/__init__.py b/src/black/__init__.py
index 2d04cf81910..4ad69acd01f 100644
--- a/src/black/__init__.py
+++ b/src/black/__init__.py
@@ -773,7 +773,6 @@ def reformat_many(
     from concurrent.futures import Executor, ThreadPoolExecutor, ProcessPoolExecutor
 
     executor: Executor
-    loop = asyncio.get_event_loop()
     worker_count = workers if workers is not None else DEFAULT_WORKERS
     if sys.platform == "win32":
         # Work around https://bugs.python.org/issue26903
@@ -788,6 +787,7 @@ def reformat_many(
         # any good due to the Global Interpreter Lock)
         executor = ThreadPoolExecutor(max_workers=1)
 
+    loop = asyncio.new_event_loop()
     try:
         loop.run_until_complete(
             schedule_formatting(