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Excerpts from Sean Dague's message of 2017-01-17 11:50:39 -0500:
> On 01/17/2017 11:46 AM, Victor Stinner wrote:
> > Le 17/01/2017 à 17:36, Sean Dague a écrit :
> >> When putting the cli interface on it, I discovered python3's argparse
> >> has subparsers built in. This makes building up the cli much easier, and
> >> removes pulling in a dependency for that. (Currently the only item in
> >> requirements.txt is pbr). This is useful both from an ease to install,
> >> as well as overall runtime.
> > 
> > Do you mean the argparse module of the Python standard library? It is
> > available on Python 2.7. Subparsers are also supported on Python 2.7, no?
> > https://docs.python.org/2/library/argparse.html#sub-commands
> > 
> > If you need a more recent version of argparse on Python 2.7, you might try:
> > https://pypi.python.org/pypi/argparse
> > 
> > But I'm not sure that this third-party module is used on Python 2.7,
> > since import checks the stdlib before checking site-packages.
> 
> Hmm... I don't know how I missed that in the docs. I guess I was going
> code blind last night. I guess it should be easy to make it all work. I
> did specifically want to avoid installing pypi argparse.
> 
> I'll probably still default this to python3, it is the future direction
> we are headed.

+1

Doug