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author | Steven Bethard <steven.bethard@gmail.com> | 2010-05-24 02:38:00 (GMT) |
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committer | Steven Bethard <steven.bethard@gmail.com> | 2010-05-24 02:38:00 (GMT) |
commit | 74bd9cf7d02b80f479028b24b16e25fabe9263be (patch) | |
tree | 27041bd4ea10d4b4b91f97265a7bb967e9acb337 /Doc | |
parent | 151973e1c89f0d17864062064d410c4bf75d1fa6 (diff) | |
download | cpython-74bd9cf7d02b80f479028b24b16e25fabe9263be.zip cpython-74bd9cf7d02b80f479028b24b16e25fabe9263be.tar.gz cpython-74bd9cf7d02b80f479028b24b16e25fabe9263be.tar.bz2 |
argparse documentation updates (including updates to optparse and getopt documentation that were promised in the PEP)
Diffstat (limited to 'Doc')
-rw-r--r-- | Doc/library/argparse.rst | 7 | ||||
-rw-r--r-- | Doc/library/getopt.rst | 22 | ||||
-rw-r--r-- | Doc/library/optparse.rst | 7 |
3 files changed, 31 insertions, 5 deletions
diff --git a/Doc/library/argparse.rst b/Doc/library/argparse.rst index 4f154c4..7a56554 100644 --- a/Doc/library/argparse.rst +++ b/Doc/library/argparse.rst @@ -672,8 +672,8 @@ command-line args should be handled. The supported actions are: >>> import argparse >>> parser = argparse.ArgumentParser(prog='PROG') - >>> parser.add_argument('-v', '--version', action='version', version='%(prog)s 2.0') - >>> parser.parse_args(['-v']) + >>> parser.add_argument('--version', action='version', version='%(prog)s 2.0') + >>> parser.parse_args(['--version']) PROG 2.0 You can also specify an arbitrary action by passing an object that implements @@ -1725,3 +1725,6 @@ A partial upgrade path from optparse to argparse: * Replace strings with implicit arguments such as ``%default`` or ``%prog`` with the standard python syntax to use dictionaries to format strings, that is, ``%(default)s`` and ``%(prog)s``. + +* Replace the OptionParser constructor ``version`` argument with a call to + ``parser.add_argument('--version', action='version', version='<the version>')`` diff --git a/Doc/library/getopt.rst b/Doc/library/getopt.rst index 91bf343..3114a82 100644 --- a/Doc/library/getopt.rst +++ b/Doc/library/getopt.rst @@ -6,6 +6,12 @@ :synopsis: Portable parser for command line options; support both short and long option names. +.. note:: + The :mod:`getopt` module is a parser for command line options whose API is + designed to be familiar to users of the C :cfunc:`getopt` function. Users who + are unfamiliar with the C :cfunc:`getopt` function or who would like to write + less code and get better help and error messages should consider using the + :mod:`argparse` module instead. This module helps scripts to parse the command line arguments in ``sys.argv``. It supports the same conventions as the Unix :cfunc:`getopt` function (including @@ -142,9 +148,21 @@ In a script, typical usage is something like this:: if __name__ == "__main__": main() +Note that an equivalent command line interface could be produced with less code +and more informative help and error messages by using the :mod:`argparse` module:: + + import argparse + + if __name__ == '__main__': + parser = argparse.ArgumentParser() + parser.add_argument('-o', '--output') + parser.add_argument('-v', dest='verbose', action='store_true') + args = parser.parse_args() + # ... do something with args.output ... + # ... do something with args.verbose .. .. seealso:: - Module :mod:`optparse` - More object-oriented command line option parsing. + Module :mod:`argparse` + Alternative command line option and argument parsing library. diff --git a/Doc/library/optparse.rst b/Doc/library/optparse.rst index 50c62aa..9d5b9ff 100644 --- a/Doc/library/optparse.rst +++ b/Doc/library/optparse.rst @@ -3,8 +3,13 @@ .. module:: optparse :synopsis: Command-line option parsing library. -.. moduleauthor:: Greg Ward <gward@python.net> + :deprecated: + +.. deprecated:: 2.7 + The :mod:`optparse` module is deprecated and will not be developed further; + development will continue with the :mod:`argparse` module. +.. moduleauthor:: Greg Ward <gward@python.net> .. versionadded:: 2.3 |