[wxPython-users] Better exception handling

[Jorgen Bodde]

Hi Riaan,

Awesome! I added this to my main code in the .pyw variant of my app,
and it works as a charm!

Thanks!
- Jorgen

On 6/30/07, Riaan Booysen <riaan at e.co.za> wrote:
> Hi Jorgen,
>
> Jorgen Bodde wrote:
> > Hi All,
> >
> > I love wxPython! One thing that worries me for my end-users is the
> > inability to see potential errors. When my GUI app is ran from a
> > console window, the exception is thrown in there. But when somethign
> > happens and the console window is not there, I would like to see an
> > error window similar to the stack walker. The way it is now, errors
> > and exceptions are eaten if I rename my app's extension to myapp.pyw
> > ..
> >
> > I would not like that as it leads to undesired behaviour and people
> > not seeing an error and think a particular button does not do anything
> > can cause more harm then showing an error dialog. Also if there is no
> > feedback, not many people will file a report.
> >
> > Is there a way to get errors back from python's exceptions when there
> > is no console window??
> >
> > Regards,
> > - Jorgen
>
> Here is a simple pattern I use for gui apps with wxPython/excepthook:
>
> import sys, traceback, wx
>
> def excepthook(type, value, trace):
>      if wx and sys and traceback:
>          exc = traceback.format_exception(type, value, trace)
>          for e in exc: wx.LogError(e)
>          wx.LogError('Unhandled Error: %s: %s'%(str(type), str(value)))
>          sys.__excepthook__(type, value, trace)
>
> And in your initialization code:
>      sys.excepthook = excepthook
>
>
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