Changeset f5921b9


Ignore:
Timestamp:
Oct 27, 2018, 6:43:43 PM (14 months ago)
Author:
Paul Brossier <piem@piem.org>
Branches:
feature/autosink, feature/constantq, feature/pitchshift, feature/pydocstrings, feature/timestretch, master
Children:
eb6f9d3
Parents:
fb1c5e2
Message:

[cmd] [py2] workaround for -V to really show version

File:
1 edited

Legend:

Unmodified
Added
Removed
  • python/lib/aubio/cmd.py

    rfb1c5e2 rf5921b9  
    500500def main():
    501501    parser = aubio_parser()
    502     args = parser.parse_args()
     502    if sys.version_info[0] != 3:
     503        # on py2, create a dummy ArgumentParser to workaround the
     504        # optional subcommand issue. See https://bugs.python.org/issue9253
     505        # This ensures that:
     506        #  - version string is shown when only '-V' is passed
     507        #  - help is printed if  '-V' is passed with any other argument
     508        #  - any other argument get forwarded to the real parser
     509        parser_root = argparse.ArgumentParser(add_help=False)
     510        parser_root.add_argument('-V', '--version', help="show version",
     511                action="store_true", dest="show_version")
     512        args, extras = parser_root.parse_known_args()
     513        if args.show_version == False: # no -V, forward to parser
     514            args = parser.parse_args(extras, namespace=args)
     515        elif len(extras) != 0: # -V with other arguments, print help
     516            parser.print_help()
     517            sys.exit(1)
     518    else: # in py3, we can simply use parser directly
     519        args = parser.parse_args()
    503520    if 'show_version' in args and args.show_version:
    504521        sys.stdout.write('aubio version ' + aubio.version + '\n')
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