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solaar-cli: fix argument parsing in Python 3 again 

Fix from e3a887f36c, this got removed
in:

    commit 3b75b69970
    Author: Daniel Pavel <daniel.pavel@gmail.com>
    Date:   Fri Aug 9 12:25:47 2013 +0200

        merged solaar-cli functionality into main solaar binary
This commit is contained in:
Peter Wu 2013-08-20 13:14:45 +02:00
parent 288c607069
commit f144816256
1 changed files with 6 additions and 0 deletions
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6
lib/solaar/cli/__init__.py
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@ -136,6 +136,12 @@ def run(cli_args=None):
args = _cli_parser.parse_args(cli_args) args = _cli_parser.parse_args(cli_args)
else: else:
args = _cli_parser.parse_args() args = _cli_parser.parse_args()
# Python 3 has an undocumented 'feature' that breaks parsing empty args
# http://bugs.python.org/issue16308
if not 'cmd' in args:
_cli_parser.print_usage(_sys.stderr)
_sys.stderr.write('%s: error: too few arguments\n' % NAME.lower())
_sys.exit(2)
action = args.action action = args.action
assert action in actions assert action in actions