[Python-Dev] Python 3 as a Default in Linux Distros (original) (raw)
Laurent Gautier lgautier at gmail.com
Wed Jul 24 18:21:54 CEST 2013
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On 07/24/2013 05:56 PM, Lennart Regebro wrote:
On Wed, Jul 24, 2013 at 3:54 PM, Lennart Regebro <regebro at gmail.com> wrote:
On Wed, Jul 24, 2013 at 11:12 AM, Bohuslav Kabrda <bkabrda at redhat.com> wrote:
- Should we point /usr/bin/python to Python 3 when we make the move? No. To be more explicit. I think it's perfectly fine to not provide a /usr/bin/python at all, but I think pointing it to Python 3 will provide unhelpful error messages. Also having a /usr/bin/python that does nothing but say "You should use either /usr/bin/python2 or /usr/bin/python3" would work. But pointing it to Python 3 will make for unhelpful and confusing error messages for anyone having Python scripts using /usr/bin/python, which is the majority of people having python scripts at all.
I guess that the underlying idea is to make the majority of python scripts working with Python 3.
What about the following idea ?
errors that are typical of "Python 2 script running with Python 3"-specific are probably limited (e.g., use of unicode, use of xrange, etc...)
/usr/bin/python could be a wrapper that tries to run it with Python 3 and display an informative message if the errors above are occurring (e.g., "Python 3 is the current release, and this script might be designed for the older Python 2 - please explicitly use python2 if you need it"
/usr/bin/python could issue a warning in any case about the need to be explicit about python2/python3
//Lennart
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