[Python-Dev] Python 2.7b1 and argparse's version action (original) (raw)

Ron Adam rrr at ronadam.com
Mon Apr 19 05:44:29 CEST 2010

On 04/18/2010 05:57 PM, Nick Coghlan wrote:

Steven Bethard wrote:

By the way, we could simplify the typical addargument usage by adding "show program's version number and exit" as the default help for the 'version' action. Then you should just write:

parser.addargument('--version', action='version', version='') With that change, I would have no problem with the current argparse behaviour (since doing it this way makes it very easy for people to add a "-V" shortcut if they want one).

+1 This sounds good to me also.

Note that the python interpreter uses -V and --version.

ra at Gutsy:$ python3.1 -V Python 3.1.2 ra at Gutsy:$ python3.1 --version Python 3.1.2

And -v is used as follows:

-v : verbose (trace import statements); also PYTHONVERBOSE=x can be supplied multiple times to increase verbosity

Ron

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