[GRASS-user] RE : [GRASS-dev] minimal wxPython version

[Anna Kratochvílová]

On Wed, Mar 20, 2013 at 5:40 PM, Robert Lagacé
<Robert.Lagace at fsaa.ulaval.ca> wrote:
> Some information :
>
> Python 2.5 first release 2006, last release 2.5.6 May 26, 2011 - No more fix or update
>
> Python 2.6 first release oct. 2008, last release 2.6.6 April 10, 2012 security and bug fix until october 2013
>        - features : prepare migration to Pyton 3.0+
>
> Python 2.7 first relaese July 3, 2010, last release 2.7.3 April 9, 2012
>        - features : inclusion of 3.1 features
>
> wxPython 2.8.12 - April 2011 - available for Python 2.7 , 2.6 (first version 2.8.0 Dec 12, 2006 - Python version ??)
>
> wxPython 2.8.10 - May 2009 - available for Python 2.6,  2.5, 2.4
>
> wxPython 2.8.8 - June 2008 - available for Python 2.5, 2.4, 2.3
>
> wxPython 2.6.4 - June 2007 -  available for Python 2.5, 2.4, 2.3  (first verion 2.6.0 April 27, 2005 - Python version 2.4, 2.3)
>
> In preparation for migration to Python 3 (in some future), tools existe for migrating from 2.6 and 2.7 but none from 2.5.
>    See : http://python3porting.com/
>
> As previously mentionned, wxPython is not available for Python 3.+ but in some future.
>
> So, requiring Python 2.6 for programming is the minimum. This will facilitate the futur porting work.
> For users, we make a recommandation for Python 2.6+ with a note that it may work for version < 2.6 but without guaranty.
> Consequently, wxPython 2.8.10 is required
>
> For GRASS 7, wxPython 2.8.12 should be required.

Thanks for the nice summary. wxPython 2.8.10 is probably still used so
I would leave this as required version. We can reconsider it again (in
a year or so).

Anna

>
> Robert Lagacé
>
> ________________________________________
> De : grass-dev-bounces at lists.osgeo.org [grass-dev-bounces at lists.osgeo.org] de la part de Anna Kratochvílová [kratochanna at gmail.com]
> Date d'envoi : 20 mars 2013 11:26
> À : Pietro
> Cc : grass-user grass-user; Michael Barton; GRASS developers list
> Objet : Re: [GRASS-dev] [GRASS-user] minimal wxPython version
>
> Minimum wxPython version is changed in r55466 (I hope I haven't missed
> any other places).
>
> On Wed, Mar 20, 2013 at 1:31 PM, Pietro <peter.zamb at gmail.com> wrote:
>> On Wed, Mar 20, 2013 at 12:02 PM, Newcomb, Doug <doug_newcomb at fws.gov> wrote:
>>> By at least, do you mean looking at 2.6, 2.7 or 3.0 as well?
>>
>> +1 for python 2.6 that it is the default version in debian stable [0]...
>>
>>
>> Moreover, the Python 2.6 [1] added compatibility functions in a
>> future_builtins module and a -3 switch to warn about usages that will
>> become unsupported in 3.0...
>> Therefore if we require python2.6, we can start to think about
>> cleaning the python code and start to use the "future_builtins"
>> modules.
>
> Yes, python3 is probably inevitable so we should prepare for it.
>
>>
>> Concerning GRASS and python 3.X, I think that the biggest problem is
>> the WxPython, at the moment only the develop version Phoneix[2] it is
>> working with python 3.
>
> I think a lot of other projects are in the same situation so I hope
> Phoenix will become more stable soon. It will take some time to update
> wxGUI to work with it but in theory there shouldn't be any major
> problems. A lot of small problems will appear, often because some
> parts of the gui code is a mess (usually some gui layout parts) and
> the newer wxPython doesn't accept it.
>
>
> So any other opinions on Python version?
>
> Anna
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