From: Senthil Kumaran <senthil@uthcode.com>
Date: Tue, 26 Jun 2012 06:17:19 +0000 (+0800)
Subject: Issue #13685 - Update argparse help message for % sign usage.
X-Git-Tag: v3.3.0b1~4^2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=f21804ad61af980cd6659ca8471b111675b9d20c;p=python

Issue #13685 - Update argparse help message for % sign usage.
---

diff --git a/Doc/library/argparse.rst b/Doc/library/argparse.rst
index 186e12da31..d64f8a2875 100644
--- a/Doc/library/argparse.rst
+++ b/Doc/library/argparse.rst
@@ -1082,6 +1082,9 @@ specifiers include the program name, ``%(prog)s`` and most keyword arguments to
    optional arguments:
     -h, --help  show this help message and exit
 
+As the help string supports %-formatting, if you want a literal ``%`` to appear
+in the help string, you must escape it as ``%%``.
+
 :mod:`argparse` supports silencing the help entry for certain options, by
 setting the ``help`` value to ``argparse.SUPPRESS``::