merge from 3.2 - Issue13685

2012-06-26 14:18:19 +08:00 · 2012-06-26 14:18:19 +08:00 · 93e3d3ac09
parent a57a8e072c f21804ad61
commit 93e3d3ac09
1 changed files with 3 additions and 0 deletions
--- a/Doc/library/argparse.rst
+++ b/Doc/library/argparse.rst
@ -1101,6 +1101,9 @@ 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``::