There are many python2 only scripts with "#!/usr/bin/python" or "#!/usr/bin/env python" shebang in the world.
I think Ubuntu and Fedora's strategy is better for now. On Fri, Sep 19, 2014 at 7:12 PM, Bohuslav Kabrda <bkab...@redhat.com> wrote: > > ________________________________ > > > On 19 Sep 2014 17:38, "Bohuslav Kabrda" <bkab...@redhat.com> wrote: >> - "Similarly, the more general python command should be installed whenever >> any version of Python is installed and should invoke the same version of >> Python as either python2 or python3." >> >> The important word in the second point is, I think, *whenever*. Trying to >> apply these two points to Fedora 22 situation, I can think of several >> approaches: >> - /usr/bin/python will always point to python3 (seems to go against the >> first mentioned PEP recommendation) >> - /usr/bin/python will always point to python2 (seems to go against the >> second mentioned PEP recommendation, there is no /usr/bin/python if python2 >> is not installed) > > I think this is what should happen, and the PEP is currently wrong. When > writing the PEP, I don't think we accounted properly for the case where the > "system Python" has migrated to Python 3, but the "default Python for end > user scripts that don't specify otherwise" is still Python 2 (which is the > migration strategy both Fedora and Ubuntu are adopting). > > Thanks, that was my thinking, too. > > How does this sound as a possible revised recommendation (keep in mind I > haven't checked this against the larger context yet): > > "The more general python command should only be installed whenever the > corresponding version of Python is installed (whether python2 or python3)." > > It seems to me that it is a bit unclear what "corresponding" is. Would it > make sense to explicitly say that "python" command should be installed > whenever the distro-chosen default system Python is installed? > > Regards, > Nick. > > > Thanks a lot > > -- > Regards, > Slavek Kabrda > > _______________________________________________ > Python-Dev mailing list > Python-Dev@python.org > https://mail.python.org/mailman/listinfo/python-dev > Unsubscribe: > https://mail.python.org/mailman/options/python-dev/songofacandy%40gmail.com > -- INADA Naoki <songofaca...@gmail.com> _______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com