From 64f54b7ccd49764b0304e076bfd79b5482988f53 Mon Sep 17 00:00:00 2001
From: andrei kulakov <andrei.avk@gmail.com>
Date: Wed, 21 Jul 2021 04:33:11 -0400
Subject: [PATCH] bpo-30511: Add note on thread safety to shutil.make_archive()
 (#26933)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Co-authored-by: Łukasz Langa <lukasz@langa.pl>
---
 Doc/library/shutil.rst                                        | 4 ++++
 .../Documentation/2021-07-20-21-03-18.bpo-30511.eMFkRi.rst    | 2 ++
 2 files changed, 6 insertions(+)
 create mode 100644 Misc/NEWS.d/next/Documentation/2021-07-20-21-03-18.bpo-30511.eMFkRi.rst

diff --git a/Doc/library/shutil.rst b/Doc/library/shutil.rst
index d5080da15bba41..11c67074921672 100644
--- a/Doc/library/shutil.rst
+++ b/Doc/library/shutil.rst
@@ -595,6 +595,10 @@ provided.  They rely on the :mod:`zipfile` and :mod:`tarfile` modules.
 
    .. audit-event:: shutil.make_archive base_name,format,root_dir,base_dir shutil.make_archive
 
+   .. note::
+
+      This function is not thread-safe.
+
    .. versionchanged:: 3.8
       The modern pax (POSIX.1-2001) format is now used instead of
       the legacy GNU format for archives created with ``format="tar"``.
diff --git a/Misc/NEWS.d/next/Documentation/2021-07-20-21-03-18.bpo-30511.eMFkRi.rst b/Misc/NEWS.d/next/Documentation/2021-07-20-21-03-18.bpo-30511.eMFkRi.rst
new file mode 100644
index 00000000000000..a358fb9cc2860b
--- /dev/null
+++ b/Misc/NEWS.d/next/Documentation/2021-07-20-21-03-18.bpo-30511.eMFkRi.rst
@@ -0,0 +1,2 @@
+Clarify that :func:`shutil.make_archive` is not thread-safe due to
+reliance on changing the current working directory.