Re: contributor's guide 10.2.8 Python

[Graham Percival]

On Sun, Aug 26, 2012 at 11:14:06AM +0100, Phil Holmes wrote:
> ----- Original Message ----- From: "Martin Tarenskeen"
> <address@hidden>
> To: "lilypond-devel mailinglist" <address@hidden>
> 
> >Also I was hoping to find info about the required/recommended
> >Python version here when I was browsing the docs. Maybe that info
> >can be found somewhere else?
> 
> It looks like the Python on my windows install is 2.4.5.

Yes.  All lilypond scripts must work on python 2.4.5 or maybe even
2.4.2.  This causes problems because everybody uses+tests stuff
with python 2.6 or 2.7, and we only discover the 2.4.5 problem
while building the binaries.

> >BTW: Are there any thoughts about switching from Python 2.x to
> >Python 3.x somewhere in the future?
> 
> I don't believe so.  A lot of the GUB build relies on Python, and it
> also creates a shipping Python by a mechanism I don't believe anyone
> currently understands.  Is there a good reason to want to?

Jan and John have spent most of the past 2 days working on GUB
side-by-side, and they're likely to spend most of today doing the
same.  Changing to python 3 would be far more intrusive than
updating to python 2.7, but even python 2.7 is likely out of reach
from a mere 4 days of solid work from two of our best build system
hackers.

If anybody's interested in this stuff, then please check out the
GUB repo.  Right now all work is done on the Waltrop branch, but
we'll be merging that with master soon.

- Graham