Re: [Matplotlib-users] pygtk

[David T. <dl...@ca...>]

Got it working using tkAgg by recompiling matplotlib from source.

David

On Jan 21 2009, David Trethewey wrote:

>I have switched between python2.5 and 2.6, so maybe I've messed up the
>installation somehow, and it's not looking for things in the right
>directories.
>
>I fiddled around with the versions of cairo and pycairo, and got them to
>match but still got errors:
>
>>>> import gtk
>Traceback (most recent call last):
>  File "<stdin>", line 1, in <module>
>  File "/usr/lib64/python2.6/site-packages/gtk-2.0/gtk/__init__.py",
>line 48, in <module>
>    from gtk import _gtk
>ImportError: /usr/lib64/libcairo.so.2: undefined symbol:
>pixman_region32_rectangles
>
>Also using tk doesn't work either:
>
>>>> import pylab
>Traceback (most recent call last):
>  File "<stdin>", line 1, in <module>
>  File "/usr/lib64/python2.6/site-packages/pylab.py", line 1, in <module>
>    from matplotlib.pylab import *
>  File "/usr/lib64/python2.6/site-packages/matplotlib/pylab.py", line
>253, in <module>
>    from matplotlib.pyplot import *
>  File "/usr/lib64/python2.6/site-packages/matplotlib/pyplot.py", line
>75, in <module>
>    new_figure_manager, draw_if_interactive, show = pylab_setup()
>  File
>"/usr/lib64/python2.6/site-packages/matplotlib/backends/__init__.py",
>line 25, in pylab_setup
>    globals(),locals(),[backend_name])
>  File
>"/usr/lib64/python2.6/site-packages/matplotlib/backends/backend_tkagg.py",
>line 8, in <module>
>    import tkagg # Paint image to Tk photo blitter extension
>  File
>"/usr/lib64/python2.6/site-packages/matplotlib/backends/tkagg.py", line
>1, in <module>
>    import _tkagg
>ImportError: No module named _tkagg
>
>
>John Hunter wrote:
>> On Wed, Jan 21, 2009 at 11:56 AM, Michael Droettboom <md...@st...> 
>> wrote:
>>> I haven't seen this before, but it definitely looks like an installation
>>> problem with pygtk and/or pycairo, since it fails without matplotlib
>>> even entering into it.  In particular, it looks like a possible mismatch
>>> between the versions of pycairo and cairo.  Is everything installed from
>>> your distro's packages, or did you build this yourself?
>>>
>>> Until "import gtk" works, there's little matplotlib can do,
>>> unfortunately.  You may want to head over to the pygtk list for help if
>>> you're still stuck.
>>>
>> 
>> Or simply set your backend to tkagg
>> 
>>   http://matplotlib.sourceforge.net/users/customizing.html
>>   http://matplotlib.sourceforge.net/faq/installing_faq.html#id1
>> 
>> JDH
>
>
>  
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