Re: Using python + pygtk in Desktop modules (was Re: Revisitingthe Gnome Bindings)

["Murray Cumming" <murrayc murrayc com>]

> Ter, 2004-09-28 às 09:27 +0200, Murray Cumming escreveu:
>> > You can expect minor API changes between major
>> > versions, of course.  That's why the modules dir changes between major
>> > releases.  That's also why to some people it looks like python is
>> > breaking the API, while it just had minor API changes but is forcing
>> you
>> > to recompile every module for the new version.
>>
>> That sounds like breaking both the API (which == the ABI for Python, I
>> think) to me.
>>
>> This is a serious objection, so let's make clear what actually happens:
>>
>> If I develop and install my app with python 2.2, and then install python
>> 2.3, might my app stop working?
>
>   Not if you recompile all 3rd party python modules the application
> depends on at the same time.  Python comes with "batteries included",
> thus applications seldom need 3rd party modules.  That leaves only
> pygtk / gnome-python to recompile.

So I take that as "Yes, the applications will break".

>   There is a trick applications can do to avoid even this issue.  You
> can put #!/usr/bin/python2.2 as first line in the script.  This way,
> even if you install python 2.3, you'll be fine as long as you don't
> uninstall python 2.2.

Can a pygtk-for-python2.2 coexist with a pygtk-for-python2.3 on the same
computer. For instance, can a python 2.2 pygtk application run at the same
time as a python 2.3 pygtk application, if both applications use the #!
thing to specify what version of python they need.

Murray Cumming
murrayc murrayc com
www.murrayc.com
www.openismus.com