Python's argparse to show program's version with prog and version string formatting
Yes, that's the accepted way. From http://docs.python.org/dev/library/argparse.html#action:
>>> parser.add_argument('--version', action='version', version='%(prog)s 2.0')You should of course be embedding the version number in your package in a standard way: Standard way to embed version into python package?
If you're following that method, you have a __version__ variable:
from _version import __version__parser.add_argument('--version', action='version', version='%(prog)s {version}'.format(version=__version__))For example, that's the method demonstrated at https://pypi.python.org/pypi/commando/0.3.2a:
parser.add_argument('-v', '--version', action='version', version='%(prog)s ' + __version__)