Hello Carlos,

I can confirm that the problem also happens with the regular python 
console, so I guess it's not an IPython issue.

cheers
David

On Friday, 16 November 2012 09:22:44 UTC+11, David wrote:
>
> Hi Carlos,
>
> I'm using Ipython 0.13.1. I don't use the regular python console any more, 
> so I don't know if the problem occurs there. Because it's quite a rare 
> problem I'd have to use the regularly in order to see the error. I'll try 
> switching over to the regular console for a while and see if the error 
> occurs there.
>
> cheers
> David
>
> On Thursday, 15 November 2012 05:17:03 UTC+11, Carlos Córdoba wrote:
>>
>> Hi David, 
>>
>> I have a couple of questions for you: 
>>
>> 1. Do you see the same behavior while you're using the Python console? 
>>
>> 2. Which version of IPython are you using? 
>>
>> Cheers, 
>> Carlos 
>>
>> El 12/11/12 22:42, David escribió: 
>> > When I close all matplotlib windows from an ipython console using the 
>> > following command 
>> > 
>> > plt.close("all") 
>> > 
>> > I occasionally get the following error, but it's not very reproducible: 
>> > 
>> > Traceback (most recent call last): 
>> > 
>> >   File 
>> > "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_qt4.py", 
>> > line 156, in <lambda> 
>> >     lambda: self.close_event()) 
>> > 
>> >   File "/usr/lib/pymodules/python2.7/matplotlib/backend_bases.py", 
>> > line 1564, in close_event 
>> >     self.callbacks.process(s, event) 
>> > 
>> > RuntimeError: wrapped C/C++ object of %S has been deleted 
>> > 
>> > I am using spyder 2.2.0dev, matplotlib 1.1.1, Qt 4.8.2 via PyQt4 (API 
>> > v2) 4.9.3 
>> > 
>> > I'm not sure whether this is a spyder issue or a matplotlib issue. Has 
>> > anybody else noticed this? 
>> > 
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