I'm writing a wrapper around the ssh
command line client. After the first positional argument that's part of command
, all further options should also be treated as positional arguments.
Under optparse
, I believe this would be done with disable_interspersed_args
.
Presently I have something like this:
parser = argparse.ArgumentParser()
parser.add_argument('--parallel', default=False, action='store_true')
# maybe allow no command? this would ssh interactively into each machine...
parser.add_argument('command', nargs='+')
args = parser.parse_args()
But if options are passed as part of the command (such as my_wrapper ls -l
), they're instead interpreted by ArgumentParser
as unknown options. error: unrecognized arguments: -l
If I use parse_known_args()
, the options may be taken out of order.
p = argparse.ArgumentParser()
p.add_argument('-a', action='store_true')
p.add_argument('command', nargs='+')
print(p.parse_known_args())
$ python3 bah.py -b ls -l -a
(Namespace(a=True, command=['ls']), ['-b', '-l'])
Here you can see that -b
's position before ls
has been lost, and -a
has been parsed out from the command, which is not desired.
How can I:
- Prevent arguments from being parsed after a certain point?
- Disable parsing of interspersed arguments?
- Allow arguments with a prefix to be consumed as positional arguments?
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