[Python-Dev] Another update for PEP 394 -- The "python" Command on Unix-Like Systems

Gustavo Carneiro gjcarneiro at gmail.com
Thu Feb 14 13:20:11 EST 2019

On Thu, 14 Feb 2019 at 15:52, Victor Stinner <vstinner at redhat.com> wrote:

> Le jeu. 14 févr. 2019 à 14:38, Matthias Klose <doko at ubuntu.com> a écrit :
> > Debian's concern about pointing python to python3 is that it will break
> software
> > after an upgrade.  The current state seems is still the same that Debian
> doesn't
> > want to ship a python symlink after the Python2 removal.
> The other safer alternative is to start to provide "py" launcher on
> Unix as well. Since it's something new, it's perfectly fine to decide
> from the start to make it point to the latest Python version by
> default.

While I like very much the idea of having `py` as command, does it really
need to be a wrapper command?  Why can't it simply be a symlink?

    /usr/bin/py -> /usr/bin/python3

I worry about (1) startup time overhead of starting another process, (2)
added complexity of learning about py's additional command-line options, we
don't really need them, imho.

> Victor
> --
> Night gathers, and now my watch begins. It shall not end until my death.
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Gustavo J. A. M. Carneiro
Gambit Research
"The universe is always one step beyond logic." -- Frank Herbert
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