[Python-checkins] bpo-20923 : [doc] Explain ConfigParser 'valid section name' and .SECTCRE (GH-31413)

[iritkatriel]

https://github.com/python/cpython/commit/bba8008f99d615a02984422a3825082bb5621f5a
commit: bba8008f99d615a02984422a3825082bb5621f5a
branch: main
author: vidhya <96202776+Vidhyavinu at users.noreply.github.com>
committer: iritkatriel <1055913+iritkatriel at users.noreply.github.com>
date: 2022-02-22T18:06:41Z
summary:

bpo-20923 : [doc] Explain ConfigParser 'valid section name'  and .SECTCRE (GH-31413)

files:
M Doc/library/configparser.rst

diff --git a/Doc/library/configparser.rst b/Doc/library/configparser.rst
index 1ebda53ecda0f..323dd2affc78f 100644
--- a/Doc/library/configparser.rst
+++ b/Doc/library/configparser.rst
@@ -267,6 +267,9 @@ out.  Values can also span multiple lines, as long as they are indented deeper
 than the first line of the value.  Depending on the parser's mode, blank lines
 may be treated as parts of multiline values or ignored.
 
+By default,  a valid section name can be any string that does not contain '\\n' or ']'.
+To change this, see :attr:`ConfigParser.SECTCRE`.
+
 Configuration files may include comments, prefixed by specific
 characters (``#`` and ``;`` by default [1]_).  Comments may appear on
 their own on an otherwise empty line, possibly indented. [1]_