[Matplotlib-users] Problems with Matplotlib examples under Windows

[Paul Hobson]

Not sure. Maybe "conda install tk"?

On Thu, Jan 7, 2016 at 2:43 PM, Chris Corben <cjcorben at hoarybat.com> wrote:

> Thanks Paul.
>
> I guess I expected Tkagg to be installed with Anaconda, and certainly the
> tkagg.py file is present. Is there some thing else I need to do to get the
> backend in my OS?
>
> Chris.
>
>
> On 1/6/2016 2:51 PM, Paul Hobson wrote:
>
>
>
> On Wed, Jan 6, 2016 at 11:24 AM, Chris Corben <cjcorben at hoarybat.com>
> wrote:
>
>> Hi everyone - I am a complete newbie to Matplotlib but love the idea and
>> want to get to know it.
>>
>> I am having problems with three of the matplotlib examples running
>> Jupyter Notebook under Windows. The same problem occurs consistently on
>> three different PCs, two running Win 7 Professional and one running Win
>> 8.1. Matplotlib was obtained by installing 64 bit Anaconda3. I am also
>> using PyCharm 5.0.3 and seeing the same issues. I have done nothing to
>> modify any part of the Anaconda installation.
>> Matplotlib is version 1.5.0
>>
>> I have also used the same setup under Linux Mint 17.2, where both in
>> Jupyter and PyCharm everything worked.
>>
>> The three examples I have tried which failed are:
>> embedding_in_tk.py
>> embedding_in_tk2.py
>> and
>> embedding_in_tk_canvas.py
>>
>> The results of all these failures are crashes of Python showing the
>> Windows error "Python has stopped working". In PyCharm I stepped through
>> the code to find where it crashed.
>> In:
>> embedding_in_tk.py
>> and
>> embedding_in_tk2.py
>> the crash occurred in the line
>> canvas.show()
>>   calling
>>   FigureCanvasTkAgg.draw() in backend_tkagg.py
>>     calling
>>     tkagg.blit() in tkagg.py
>>     and crashed in the second attempt at
>>       tk.call()
>>
>> In:
>> embedding_in_tk_canvas.py  (modified only to import tkinter.py for Python
>> 3)
>> the crash occurred in the line
>>   fig_photo = draw_figure(canvas, fig, loc=(fig_x, fig_y))
>>     calling
>>     draw_figure()
>>       failing in the line
>>       tkagg.blit()
>>         which calls
>>         get_renderer() in backend_agg.py
>>           which crashes at the end of the function in the line
>>           return self.renderer
>>
>> I ensured at all times that Python 3.5 in Anaconda was used as the
>> interpreter.
>>
>> I presume this is due to some difference in the OS's and would love to
>> hear what I can do about it!
>
>
> At first glance, it seems like your windows machine doesn't have the TkAgg
> backend. If everything else ran, I wouldn't working about this.
>
> -paul
>
>
>
> --
>
> Chris Corben.
>
>
>
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