[webkit-dev] minimum python version to support

[Ojan Vafai]

Chromium already uses the installed python for Mac/Linux, which defaults to
2.5. So it sounds like we can safely use 2.5.

Ojan

On Fri, Mar 19, 2010 at 10:26 AM, Marc-Antoine Ruel <maruel at chromium.org>wrote:

> FYI, Chromium folks on Windows will be on python 2.6 real soon(tm).
> The CL to bug them to upgrade should be committed within the next few
> minutes.
>
> [Thread hijack]
>
> If you're not a Chromium-Webkit committer running on Windows, please
> ignore the rest of this email.
>
> Otherwise, please "del depot_tools\python.bat" and run "gclient".
>
> Thanks,
>
> M-A
>
> 2010/3/19 Adam Barth <abarth at webkit.org>:
> > Awesome!
> >
> > /me goes and comments on the bug.
> >
> > Adam
> >
> >
> > On Fri, Mar 19, 2010 at 9:57 AM, Chris Jerdonek <cjerdonek at webkit.org>
> wrote:
> >> Mechanize (and ClientForm on which it depends) does work with Python
> 2.4:
> >>
> >> http://wwwsearch.sourceforge.net/mechanize/
> >>
> >> (See the section on compatibility.)
> >>
> >>
> >> On Fri, Mar 19, 2010 at 9:19 AM, Adam Barth <abarth at webkit.org> wrote:
> >>> My understanding is that some of the libraries we use, like Mechanize,
> >>> don't work in Python 2.4.  My complaint in Bug 36063 is that we're
> >>> re-implementing Mechanize poorly.  I'd rather we just upgraded the
> >>> machines that need to run-webkit-tests to a more modern version of
> >>> Python.
> >>>
> >>> Adam
> >>>
> >>>
> >>> On Fri, Mar 19, 2010 at 7:41 AM, Chris Jerdonek <cjerdonek at webkit.org>
> wrote:
> >>>> No one responded back with a summary of the Python 2.4 discussion, so
> >>>> I'll attempt a summary of my own after reading--
> >>>>
> >>>> https://bugs.webkit.org/show_bug.cgi?id=35584
> >>>>
> >>>> (If you recall, we are trying to decide what Python code we write
> >>>> needs to work with Python 2.4.)
> >>>>
> >>>> The Chromium project still uses Python 2.4 in a significant way.  Some
> >>>> Chromium bots run new-run-webkit-tests using 2.4, and a number of
> >>>> developers use 2.4 in their development environments.  Generally
> >>>> speaking, people support upgrading, but no one is spearheading an
> >>>> upgrade and there is no ETA.
> >>>>
> >>>> For the time being, because of the bots, it seems like
> >>>> new-run-webkit-tests definitely needs to keep working with 2.4.  But
> >>>> for the tools used more in the development environment (webkit-patch,
> >>>> etc), it seems like people would be willing to find a way to make
> >>>> things work with 2.5+.
> >>>>
> >>>> It would be pretty easy to get all of our Python code working with 2.4
> >>>> (we had a patch for this a couple weeks ago), but going back wouldn't
> >>>> let us use some of the nicer constructs.  And we would have to contend
> >>>> with at least one bug in 2.4.
> >>>>
> >>>> (End of summary.)
> >>>>
> >>>> Plainly, the options seem to be--
> >>>>
> >>>> (1) All Python 2.5+
> >>>> (2) All Python 2.4
> >>>> (3) Some combination of (1) and (2) (e.g. new-run-webkit-tests 2.4,
> >>>> everything else 2.5)
> >>>>
> >>>> However, (1) does not seem to be an option.  Personally, I'm starting
> >>>> to lean more toward to (2).  One reason is that we are already
> >>>> starting to see a case of re-implementing in Python 2.4 (for
> >>>> new-run-webkit-tests) code that was already written in 2.5:
> >>>>
> >>>> https://bugs.webkit.org/show_bug.cgi?id=36063#c4
> >>>>
> >>>> I also think it would be helpful if we did not need to have this
> >>>> discussion for each new script we decide to write in Python.  I would
> >>>> be willing to update the patch from a couple weeks ago that adjusts
> >>>> things for 2.4.
> >>>>
> >>>> --Chris
> >>>>
> >>>>
> >>>>
> >>>>
> >>>> On Sun, Mar 7, 2010 at 4:18 PM, Chris Jerdonek <cjerdonek at webkit.org>
> wrote:
> >>>>> On Fri, Mar 5, 2010 at 6:43 PM, David Kilzer <ddkilzer at webkit.org>
> wrote:
> >>>>>> On Thu, March 4, 2010 at 5:35:08 PM, William Siegrist wrote:
> >>>>>>
> >>>>>>> Since I have a Tiger machine handy, I tested this and was able to
> build python
> >>>>>>> 2.5.5 from MacPorts on a PowerPC. It takes a while, but it worked.
> I did not try
> >>>>>>> python 2.6.
> >>>>>>
> >>>>>> I've installed python 2.6.4 using MacPorts on my PowerBook G4
> running Tiger 10.4.11, and it's worked find with webkit-patch the one or two
> times I tried it.
> >>>>>
> >>>>> That sounds great.  Thanks a lot, Dave and Bill.  So does it seem
> safe
> >>>>> to say, then, that folks on 2.3 can upgrade if it ever becomes
> >>>>> necessary to use one of the tools?
> >>>>>
> >>>>> As for Python 2.4, I haven't been following the discussion as closely
> >>>>> since it seems to affect Chromium developers more.  Can someone
> >>>>> summarize the state of the discussion there -- does it seem like
> there
> >>>>> is a consensus?
> >>>>>
> >>>>> --Chris
> >>>>>
> >>>> _______________________________________________
> >>>> webkit-dev mailing list
> >>>> webkit-dev at lists.webkit.org
> >>>> http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev
> >>>>
> >>>
> >>
> > _______________________________________________
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> > webkit-dev at lists.webkit.org
> > http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev
> >
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