From da093c395c16800fc81cebbf2fa8026d9e489c61 Mon Sep 17 00:00:00 2001
From: Rebecca Chen <rechen@google.com>
Date: Wed, 23 Feb 2022 19:21:25 -0800
Subject: [PATCH] Allow multiprocessing.pool.ThreadPool.__exit__ to accept None
 (#7376)

---
 stdlib/multiprocessing/pool.pyi | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/stdlib/multiprocessing/pool.pyi b/stdlib/multiprocessing/pool.pyi
index f79348e9d..5e38e0161 100644
--- a/stdlib/multiprocessing/pool.pyi
+++ b/stdlib/multiprocessing/pool.pyi
@@ -111,7 +111,9 @@ class Pool:
     def terminate(self) -> None: ...
     def join(self) -> None: ...
     def __enter__(self: Self) -> Self: ...
-    def __exit__(self, exc_type: type[BaseException], exc_val: BaseException, exc_tb: TracebackType) -> None: ...
+    def __exit__(
+        self, exc_type: type[BaseException] | None, exc_val: BaseException | None, exc_tb: TracebackType | None
+    ) -> None: ...
 
 class ThreadPool(Pool):
     def __init__(