[ANN] argparse 0.7 - Command-line parsing library

Steven Bethard steven.bethard at gmail.com
Sun Mar 25 19:05:23 CEST 2007

Announcing argparse 0.7

The argparse module is an optparse-inspired command line parser that
improves on optparse by supporting:

* positional arguments
* sub-commands
* required options
* options with a variable number of args
* better usage messages
* a much simpler extension mechanism

and a number of other improvements on the optparse API.

Download argparse

argparse home:

argparse single module download:

argparse bundled downloads at PyPI:

About this release

This release adds support for single-dash long options and combining
single-dash options in a single option string.

Note that the 'outfile' type is still deprecated and will likely be
removed in the next release. Please update your code to use the new
FileType factory.

New in this release

* Single-dash long options (e.g. ``-foo`` or ``-foo-bar``)

* Combining single-dash options (e.g. ``-xy`` is now the same as
  ``-x -y`` when ``-x`` does not take an argument)

Example argparse code

Here's a simple program that sums its command-line arguments and
writes them to a file::

  parser = argparse.ArgumentParser()
  parser.add_argument('integers', nargs='+', type=int)
  parser.add_argument('--log', default=sys.stdout,
  args = parser.parse_args()
  args.log.write('%s\n' % sum(args.integers))

More information about the Python-announce-list mailing list