Announcing argparse 0.3
-----------------------
argparse home:
http://argparse.python-hosting.com/
argparse single module download:
http://argparse.python-hosting.com/file/trunk/argparse.py?format=raw
argparse bundled downloads at PyPI:
http://www.python.org/pypi/argparse/
About this release
==================
This release moves argparse's development status from Pre-Alpha to
Alpha. The API is basically stable, though reasonable change requests
will still be considered.
New in this release
===================
* The '--' pseudo-argument can now be used to terminate the arg list
of an optional::
>>> parser = argparse.ArgumentParser()
>>> parser.add_argument('-x', nargs='+')
>>> parser.add_argument('y')
>>> parser.parse_args('-x X1 X2 X3 -- Y'.split())
Namespace(x=['X1', 'X2', 'X3'], y='Y')
About argparse
==============
The argparse module is an optparse-inspired command line parser that
improves on optparse by:
* handling both optional and positional arguments
* supporting parsers that dispatch to sub-parsers
* producing more informative usage messages
* supporting actions that consume any number of command-line args
* allowing types and actions to be specified with simple callables
instead of hacking class attributes like STORE_ACTIONS or
CHECK_METHODS
as well as including a number of other more minor improvements on the
optparse API. To whet your appetite, here's a simple program that sums
its command-line arguments and writes them to a file::
parser = argparse.ArgumentParser()
parser.add_argument('integers', type=int, nargs='+')
parser.add_argument('--log', type='outfile', default=sys.stdout)
args = parser.parse_args()
args.log.write('%s\n' % sum(args.integers))
args.log.close()
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