Why Ubuntu doesn’t support certain form of shebang for Python?

Barry Warsaw barry at python.org
Tue Nov 11 22:19:38 UTC 2014

On Nov 11, 2014, at 11:48 AM, Neal McBurnett wrote:

>I'm glad that python2 is in Debian and Ubuntu (do you know offhand which
>releases?).  Which distros is it still not supported in?  Are they likely to
>catch up?

Sorry, I don't know off-hand.

>Do you see a path to a world where compliance with PEP 0394 is the right
>approach, making the transition to python3 easier?
>  http://legacy.python.org/dev/peps/pep-0394/

I suspect PEP 394 will mostly be a reflection of reality rather than a driver
of downstream policy.  E.g. I think it will be a very long time, if ever,
that you'll see PEP 394 recommend, or widespread de facto adoption, of
/usr/bin/python pointing to Python 3.  Maybe by Python 4 <wink>.

Hopefully though PEP 394 will stop other distros from doing insane things like
was done with that one existing "adventurous" outlier.

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