paul j3 <ajipa...@gmail.com> added the comment:
Did you copy the output right? Testing your parser:
Without any arguments, I get the exclusive group error - the group is required:
0930:~/mypy/argdev$ python3 issue18943.py
usage: issue18943.py [-h]
(--device-get-capabilities | --ptz-absolute-move x y z |
--ptz-get-status MEDIA_PROFILE)
issue18943.py: error: one of the arguments --device-get-capabilities
--ptz-absolute-move --ptz-get-status is required
0931:~/mypy/argdev$ python3 --version
Python 3.5.2
With one flag but not its argument, I get the error that you display. That has
nothing to do with the grouping.
0932:~/mypy/argdev$ python3 issue18943.py --ptz-get-status
usage: issue18943.py [-h]
(--device-get-capabilities | --ptz-absolute-move x y z |
--ptz-get-status MEDIA_PROFILE)
issue18943.py: error: argument --ptz-get-status: expected one argument
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<https://bugs.python.org/issue18943>
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