[Python-Dev] Bilingual scripts
barry at python.org
Tue May 28 17:35:00 CEST 2013
On May 24, 2013, at 04:23 PM, R. David Murray wrote:
>Gentoo has a (fairly complex) driver script that is symlinked to all
>of these bin scripts. The system then has the concept of the
>"current python", which can be set to python2 or python3. The default
>bin then calls the current default interpreter. There are also
>xxx2 and xxx3 versions of each bin script, which call the 'current'
>version of python2 or python3, respectively.
>I'm sure one of the gentoo devs on this list can speak to this more
>completely...I'm just a user :) But I must say that the system works
>well from my point of view.
Interesting approach, but it doesn't seem to me to be fundamentally different
than the BPOS (big pile o' symlinks).
Over in Debian-land one of the interesting points against a driver script was
that folks like to be able to explicitly override the shebang line
$ head /usr/bin/foo
#! /usr/bin/python3 -Es
$ python3.4 /usr/bin/foo
One other person mentioned they like to be able to execfile() - or the Python
3 moral equivalent - the /usr/bin script, which obvious would be harder with a
sh or binary driver script.
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