commit 2085bd0877e17ad4d98a4586d5eabb6faecbb190
author Serhiy Storchaka <storchaka@gmail.com> Sat Jun 01 11:00:15 2019 +0300
committer GitHub <noreply@github.com> Sat Jun 01 11:00:15 2019 +0300
tree c25b20d33ebf4d64a28abb8591f4ff7acf90614c
parent 4a686504eb2bbf69adf78077458508a7ba131667

bpo-37116: Use PEP 570 syntax for positional-only parameters. (GH-13700)

Lib/multiprocessing/pool.py

diff --git a/Lib/multiprocessing/pool.py b/Lib/multiprocessing/pool.py
index 665ca06..b223d6a 100644
--- a/Lib/multiprocessing/pool.py
+++ b/Lib/multiprocessing/pool.py
@@ -154,7 +154,7 @@
     notification is done by the use of a queue that is provided when
     instantiating the cache.
     """
-    def __init__(self, *args, notifier=None, **kwds):
+    def __init__(self, /, *args, notifier=None, **kwds):
         self.notifier = notifier
         super().__init__(*args, **kwds)