[Sugar-devel] PyGame can be run only once assertion error

[James Cameron]

Hmm, not terrific, yes.  But 100% of the developers who have used
SugarGames in the past nine months have stumbled on it.  ;-)

On Fri, Sep 27, 2013 at 05:19:04AM -0300, Alan Jhonn Aguiar Schwyn wrote:
> I think that is not "terrific" problem.
> The problem must be documented, it's a easy to solve inconvenient.
> In the code, sugargames/canvas.py there are this:
> 
> # Preinitialize Pygame with the X window ID.
>  assert pygame.display.get_init() == False, "Pygame must not be initialized
> before calling PygameCanvas.run_pygame."
> 
> 
> > Date: Fri, 27 Sep 2013 17:14:58 +1000
> > From: quozl at laptop.org
> > To: alanjas at hotmail.com
> > CC: sugar-devel at lists.sugarlabs.org; laurent.bernabe at gmail.com
> > Subject: Re: [Sugar-devel] PyGame can be run only once assertion error
> >
> > Could this be fixed in SugarGames in future?
> >
> > (Not an invitation to discuss deprecation in favour of alternate
> > technologies; clearly it is in use, why can't we fix it?)
> >
> > On Fri, Sep 27, 2013 at 04:07:11AM -0300, Alan Jhonn Aguiar Schwyn wrote:
> > > There are not problem with call "pygame.init" all times that you want (see
> the
> > > documentation).
> > > The problem is call outside of self._pygamecanvas.run_pygame function.
> > > It's one thing of SugarGames.
> > >
> > > ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
> ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
> ━━━
> > > Date: Fri, 27 Sep 2013 09:03:25 +0200
> > > Subject: Re: [Sugar-devel] PyGame can be run only once assertion error
> > > From: laurent.bernabe at gmail.com
> > > To: alanjas at hotmail.com
> > > CC: sugar-devel at lists.sugarlabs.org
> > >
> > > Thank you very much.
> > >
> > > In fact I had already solved the problem and commited when I read your
> message
> > > : my idea was the same than yours, but I've done it with a "lazy
> > > initialisation", thanks to a flag self._initialized (boolean).
> > >
> > > Thanks :)
> > >
> > >
> > > 2013/9/26 Alan Jhonn Aguiar Schwyn <alanjas at hotmail.com>
> > >
> > > A patch worth more than 1000 words..
> > >
> > > In the patch I show "the idea" behind the problem. You can move all code
> > > that not needs pygame to the __init__ of the Game class.
> > >
> > > ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
> ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
> > > From: alanjas at hotmail.com
> > > To: laurent.bernabe at gmail.com; sugar-devel at lists.sugarlabs.org
> > > Date: Thu, 26 Sep 2013 15:01:13 -0300
> > > Subject: Re: [Sugar-devel] PyGame can be run only once assertion error
> > >
> > > You can't call pygame.init in the game creation,
> > > not worry if you put all code on self._act.show_menu
> > >
> > > ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
> ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
> > > Date: Thu, 26 Sep 2013 17:01:04 +0000
> > > From: laurent.bernabe at gmail.com
> > > To: sugar-devel at lists.sugarlabs.org
> > > Subject: [Sugar-devel] PyGame can be run only once assertion error
> > >
> > > Hello, everyone,
> > >
> > > In my project HitTheBalls, which I've just commited the last modifications,
> > > I have a bug I that I don't manage to solve.
> > >
> > > If I launch the game without sugar, however, it runs fine.
> > > Also I modified the activity.py in order to fit my main_game module
> > > modifications. Maybe that the reason why I have this behaviour (the
> > > activity log is not very verbose in my case).
> > >
> > > So how can I solve the problem ?
> > >
> > > This is the activity log :
> > >
> > > ________________________________________________________
> > > 1380214070.631923 WARNING root: No Gtk.AccelGroup in the top level window.
> > > Traceback (most recent call last):
> > > File "/home/broot/sugar-build/activities/HitTheBalls.activity/sugargame/
> > > canvas.py", line 40, in _run_pygame_cb
> > > assert pygame.display.get_surface() is None, "PygameCanvas.run_pygame
> > > can only be called once."
> > > AssertionError: PygameCanvas.run_pygame can only be called once.
> > > 1380214073.021442 WARNING root: No Gtk.AccelGroup in the top level window.
> > > Exited with status 0, pid 9045 data (None, <open file '<fdopen>', mode 'w'
> > > at 0x1a299c0>, dbus.ByteArray('e2c07f313236150806506c5508b5a987bf6d2b4d',
> > > variant_level=1))
> > > _________________________________________________________________
> > >
> > > Regards
> > >
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> > >
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> >
> > --
> > James Cameron
> > http://quozl.linux.org.au/
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-- 
James Cameron
http://quozl.linux.org.au/