From: Serhiy Storchaka <storchaka@gmail.com>
Date: Sat, 30 Apr 2022 10:03:23 +0000 (+0300)
Subject: gh-92049: Forbid pickling constants re._constants.SUCCESS etc (GH-92070)
X-Git-Tag: v3.11.0b1~172
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=6d0d547033e295f91f05030322acfbb0e280fc1f;p=thirdparty%2FPython%2Fcpython.git

gh-92049: Forbid pickling constants re._constants.SUCCESS etc (GH-92070)

Previously, pickling did not fail, but the result could not be unpickled.
---

diff --git a/Lib/re/_constants.py b/Lib/re/_constants.py
index c45ce409e21b..71204d903b32 100644
--- a/Lib/re/_constants.py
+++ b/Lib/re/_constants.py
@@ -62,6 +62,8 @@ class _NamedIntConstant(int):
     def __repr__(self):
         return self.name
 
+    __reduce__ = None
+
 MAXREPEAT = _NamedIntConstant(MAXREPEAT, 'MAXREPEAT')
 
 def _makecodes(*names):
diff --git a/Misc/NEWS.d/next/Library/2022-04-30-10-53-10.gh-issue-92049.5SEKoh.rst b/Misc/NEWS.d/next/Library/2022-04-30-10-53-10.gh-issue-92049.5SEKoh.rst
new file mode 100644
index 000000000000..cad4621c6509
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2022-04-30-10-53-10.gh-issue-92049.5SEKoh.rst
@@ -0,0 +1,2 @@
+Forbid pickling constants ``re._constants.SUCCESS`` etc. Previously,
+pickling did not fail, but the result could not be unpickled.