[Python-checkins] cpython (3.2): Issue #10772: add count and help argparse action; patch by Marc Sibson

Wed Jan 4 23:26:41 CET 2012

http://hg.python.org/cpython/rev/326f755962e3
changeset: 74273:326f755962e3
branch: 3.2
parent: 74265:86141d28b20d
user: Sandro Tosi <sandro.tosi at gmail.com>
date: Wed Jan 04 23:25:04 2012 +0100
summary:
 Issue #10772: add count and help argparse action; patch by Marc Sibson
files:
 Doc/library/argparse.rst | 13 +++++++++++++
 1 files changed, 13 insertions(+), 0 deletions(-)

diff --git a/Doc/library/argparse.rst b/Doc/library/argparse.rst
--- a/Doc/library/argparse.rst
+++ b/Doc/library/argparse.rst
@@ -705,6 +705,19 @@
 >>> parser.parse_args('--str --int'.split())
 Namespace(types=[<class 'str'>, <class 'int'>])
 
+* ``'count'`` - This counts the number of times a keyword argument occurs. For
+ example, this is useful for increasing verbosity levels::
+
+ >>> parser = argparse.ArgumentParser()
+ >>> parser.add_argument('--verbose', '-v', action='count')
+ >>> parser.parse_args('-vvv'.split())
+ Namespace(verbose=3)
+
+* ``'help'`` - This prints a complete help message for all the options in the
+ current parser and then exits. By default a help action is automatically
+ added to the parser. See :class:`ArgumentParser` for details of how the
+ output is created.
+
 * ``'version'`` - This expects a ``version=`` keyword argument in the
 :meth:`~ArgumentParser.add_argument` call, and prints version information
 and exits when invoked.
-- 
Repository URL: http://hg.python.org/cpython
