On Sun, Oct 3, 2010 at 7:44 AM, David Verelst <[email protected]> wrote:
> Hi,
>
> I found that my comparable printing issues were resolved when using
> the Qt4Agg backend in matplotlib (using matplotlib 0.99.1.1).
> After importing matplotlib but BEFORE pylab, change the backend like this:
> matplotlib.use('Qt4Agg', warn=True)
Thanks, that works.
I never thought of choosing the backend inside the script. Now it
would be interesting to do this only if I (or someone else) is using
spyder, but I haven't found yet what condition to put in the if.
Josef
> I believe the default one is:
> matplotlib.use('GTKCairo', warn=True)
> For more info about the backends:
> http://matplotlib.sourceforge.net/faq/installing_faq.html#what-is-a-backend
>
> The reason why I was looking for changing the backend, is the warning
> in matplotlib when using the default GTKCairo. Using spyder 1.1.0, I
> get:
>
> /usr/local/lib/python2.6/dist-packages/matplotlib-0.99.1.1-py2.6-linux-x86_64.egg/matplotlib/backends/backend_gtk.py:621:
> DeprecationWarning: Use the new widget gtk.Tooltip
> self.tooltips = gtk.Tooltips()
>
> For spyder 2.0.0beta4 an additional message is given:
>
> /usr/lib/pymodules/python2.6/gtk-2.0/gtk/__init__.py:127:
> RuntimeWarning: PyOS_InputHook is not available for interactive use of
> PyGTK
> set_interactive(1)
>
> Personally, I never work with the show() command. I always save my
> figures using savefig() (often in .eps, works fantastic when using my
> figures together with LaTeX) close them with close() and view them in
> other viewer. This works very well for my usual scenario's where a lot
> of plots are generated and saved automatically.
>
> Since this is my first post on the mailing list, I would like to take
> the opportunity to thank especially Pierre for his great work on
> Spyder!!
>
> Greetings,
>
> David
>
>
> On 2 October 2010 23:21, <[email protected]> wrote:
>> When I'm running a script that has plots with matplotlib, then I
>> cannot interact with the shell.
>>
>> I think my default TkInter backend (tuned for use with IDLE) is not
>> really compatible with the Qt threads. How can I change the backend
>> for matplotlib when using spyder without changing my default
>> matplotlib rc file?
>>
>> I'm working with matplotlib 0.99.1, so maybe things are different with
>> a more recent matplotlib.
>>
>> Essentially, at least since early in the spyder 1.x series if I have a
>> matplotlib show() in my script then the external consoles show the
>> graphs. After closing the graphs I get the prompt in the shell but
>> when I hit enter after entering a python command it just goes to the
>> next line without ever executing the python command or showing any
>> results. When I run the script containing the plots in the ipython
>> shell, I got
>> "
>> In [5]: plt.show()
>>
>> In [6]: Fatal Python error: PyEval_RestoreThread: NULL tstate
>>
>> This application has requested the Runtime to terminate it in an unusual way.
>> Please contact the application's support team for more information.
>> Fatal Python error: PyEval_RestoreThread: NULL tstate
>>
>> This application has requested the Runtime to terminate it in an unusual way.
>> Please contact the application's support team for more information.
>> "
>>
>> In the 1.x series I could still use the internal shell, where the
>> interaction after plt.show() still worked.
>>
>> WindowsXP, spyder 2 beta4
>>
>> Thanks,
>>
>> Josef
>>
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>>
>
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