https://bugs.gentoo.org/929716
https://github.com/notmuch/notmuch/commit/3771832b013012e408696897215fd0edde7dce37

From 3771832b013012e408696897215fd0edde7dce37 Mon Sep 17 00:00:00 2001
From: Michael J Gruber <git@grubix.eu>
Date: Fri, 16 Jun 2023 13:19:26 +0200
Subject: [PATCH] python: adjust legacy bindings to py 3.12

Py 3.12 finally pulled the plug on the `SafeConfigParser` class which
has been deprecated since py 3.2.

We use it in the legacy bindings only, so take the easy route of
importing `ConfigParser` as `SafeConfigParser` and monkey-patching so
that the class has the expected interface.
--- a/bindings/python/notmuch/compat.py
+++ b/bindings/python/notmuch/compat.py
@@ -47,7 +47,10 @@ def encode_utf8(value):
 
         return value
 else:
-    from configparser import SafeConfigParser
+    from configparser import ConfigParser as SafeConfigParser
+
+    if not hasattr(SafeConfigParser, 'readfp'):   # py >= 3.12
+        SafeConfigParser.readfp = SafeConfigParser.read_file
 
     class Python3StringMixIn(object):
         def __str__(self):