Re: [matplotlib-devel] matplotlib backend_wx

Hi John,

  My apologies for apparently missing your earlier response.
Interesting enough, last night when i was looking around in the 
backend_wx.py code for what might be causing those debug messages,
i thought that line: 
>   wxInitAllImageHandlers()  

in conjunction the "Adding duplicate image handler" looked
suspect. I briefly thought about commenting it out...but i
figured that would probably break the tool bar icons etc. 

As you suggested, i tried commenting that line out, and sure
enough: no debug messages...and my app that does some plotting 
appears to work fine.

Thanks a lot!!
Glad my report led you to a problem you were looking for.

Jim

On Sat, 17 Apr 2004, John Hunter wrote:

> 
> Hi Jim,
> 
> I responded to this earlier today on matplotlib-users.  Here is a copy
> of my post.  I'm very interested in getting some feedback if you try
> the suggestion below.
> 
> JDH
> 
> 
> >>>>> "Jim" == Jim Benson <jb...@se...> writes:
> 
>     Jim> Hi,
> 
>     Jim>   I seem to be seeing some extra debug output. I have been
>     Jim> using the wx background and the embedding_in_wx.py example as
>     Jim> a template for how to make matplotlib plots in an app i'm
>     Jim> writing.  This part works great!!  I am however seeing what
>     Jim> appears to be a debug flag left on somewhere?
> 
> No, this is in the wx code.  I traced it to the line
> 
>   wxInitAllImageHandlers()
> 
> Miraculously, I commented this out, got rid of the annoying messages,
> and fixed the wx exception swallowing bug!  Jeremy and I have been
> killing ourselves for about 6 months trying to figure out why backend
> wx was swallowing our exceptions, and I can't really convey how happy
> I am to have found this.  We have tried all manner of hacks, google
> searches and plantive pleas to get our exceptions back to no avail.
> It made debugging wx virtually impossible.
> 
> Please test this change on your system.  win32 users, I would also be
> much obliged if you could try commenting this out on your system to
> see if you lose functionality.  On my linux box, the figures came up
> as expected, I was able to print to jpg and png, so all looks well.
> 
> Note, wxagg is in CVS if you need some of the agg features that native
> wx drawing does not provide.  But it looks like all systems are go for
> a release next week so you may as well wait.
> 
> JDH
> 
> 

-- 
Dr. James A. Benson
United States Naval Observatory
Navy Prototype Optical Interferometer
Flagstaff, AZ 86001
Email: jb...@no...
       jb...@se...
Voice: 928-773-4868/928-779-5132
Fax:   928-779-9568