Re: [matplotlib-devel] 1.1.1rc RuntimeError: underlying C/C++ object has been deleted

[Neal B. <ndb...@gm...>]

John Hunter wrote:

> On Wed, Mar 28, 2012 at 8:57 AM, Neal Becker
> <ndb...@gm...> wrote:
> 
>> qt-x11-4.8.0-7.fc16.x86_64
>> PyQt4-4.8.6-1.fc16.x86_64
>>
>> But interestingly, I'm not actually using the display in this script.  I'm
>> using
>> pdfpages.
> 
> 
> At the beginning of your script (before importing pylab/pyplot) you should
> be doing
> 
> import matplotlib
> matplotlib.use('pdf')
> 
> It looks like you are inadvertently importing the qt library in a headless
> script run.
> 
> JDH

Thanks, but should that cause a (scary looking) error?  Or is there a real 
problem?