matplotlib-users Mailing List for matplotlib

On Dec 28, 2005, at 6:29 PM, Christopher Barker wrote:
> I just compiled Matplotlib 0.85 with the WXAgg back end.
>
> It seems to work fine, but when I run it, I get:
<errors snipped>
> This happens with pylab.show(), or if I use wxmpl.PlotPanel in an 
> App of my own.
This looks like another weird wxPython/wxWidgets/Gnome/CUPS problem, 
similar to the one Ryan Krauss had in October. Given that you're 
getting very different error messages, I'm not sure that his solution 
is applicable:
On Oct 20, 2005, at 5:12 PM, Ryan Krauss wrote:
> So, it appears this is a problem with CUPS and wxPython. I had never
> plugged a printer into this fairly new installation of ubuntu. After
> doing so and making sure that cups is running, the IPP error went
> away.
>
> On 10/20/05, Ken McIvor <mc...@ii...> wrote:
>> Based on the strace output, I believe that the warning is getting 
>> generated
>> when trying to start up CUPS (`/etc/cups/client.conf' is opened at 
>> line
>> 10484), from within lincups, which is loaded by libgnomeprintcups, 
>> which is
>> loaded by libgnomeprint, which is loaded by wxWidgets, which is 
>> loaded by
>> wxPython (whee!). Do you have a working CUPS installation on your 
>> computer?
>> If that's not the solution, then I don't know what is; try 
>> emailing the
>> wxPython-users list.
On Dec 28, 2005, at 6:29 PM, Christopher Barker wrote:
> I haven't noticed this in any other wxPython apps. I have no idea 
> how to debug this, as it's not an error at the Python level.
I had Ryan send me some strace output:
	$ strace python -c short_wxagg_script.py > strace.txt 2>&1
You probably don't want to send it to the lists, but I'll be happy to 
take a look at it. I also have the strace output from October, if 
that would help the wxPython gurus better understand what's going on.
Another useful bit of information would be whether or not the 
wxPython demo's printing framework example causes the same errors 
when you run it. That might help us nail down the source of the 
problem (e.g. is it at the wxPython-level, or something WxAgg is 
doing to wxPython, or the inclusion of the printing framework?).
Ken

Hi all,
I just compiled Matplotlib 0.85 with the WXAgg back end.
It seems to work fine, but when I run it, I get:
** (python2.4:24617): WARNING **: failed request with status 200
(python2.4:24617): GnomePrintCupsPlugin-WARNING **: iconv does not 
support ppd character encoding: ISOLatin1, trying CSISOLatin1
** (python2.4:24617): WARNING **: failed request with status 200
This happens with pylab.show(), or if I use wxmpl.PlotPanel in an App of 
my own.
I haven't noticed this in any other wxPython apps. I have no idea how to 
debug this, as it's not an error at the Python level.
Linux Fedora Core4
Python 2.4.1
wxPython '2.6.1.0' (gtk2-unicode[
matplotlib 0.85
Anyone have any ideas?
-Chris
-- 
Christopher Barker, Ph.D.
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