commit 1cc6769e4146951d47528a97e56ba1e8e9ee7fc1
author Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Tue Jul 13 07:35:30 2021 -0700
committer GitHub <noreply@github.com> Tue Jul 13 16:35:30 2021 +0200
tree 89bd377749be6a106d76dae5d3ed27b95e55a1fd
parent f514addfbc637a42549ddc422b35b6caad2a4363

bpo-38741: Definition of multiple ']' in header configparser (GH-17129) (#27110)

Co-authored-by: Jason Killen <jason.killen@windsorcircle.com>
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
(cherry picked from commit 2924bb1a566977efd45f335d6a94cd84d8047edf)

Co-authored-by: jsnklln <jsnklln@gmail.com>

Lib/configparser.py

diff --git a/Lib/configparser.py b/Lib/configparser.py
index 2f45e24..042a5c7 100644
--- a/Lib/configparser.py
+++ b/Lib/configparser.py
@@ -563,7 +563,7 @@ class RawConfigParser(MutableMapping):
     # Regular expressions for parsing section headers and options
     _SECT_TMPL = r"""
         \[                                 # [
-        (?P<header>[^]]+)                  # very permissive!
+        (?P<header>.+)                     # very permissive!
         \]                                 # ]
         """
     _OPT_TMPL = r"""