Re: [Matplotlib-users] fedora core 3 install problem

Dear John,

Thanks for the help. Now it works!

Karsten.

On Tue, 2005-04-26 at 20:38 -0500, John Hunter wrote:
> >>>>> "Karsten" == Karsten Wedel Jacobsen <kw...@fy...> writes:
> 
>     Karsten> After that the build and install went smoothly. But now
>     Karsten> if I try to import pylab I get the following error:
>     Karsten> pixbuf_get_pixels_array ImportError: No module named
>     Karsten> _nc_backend_gdk
> 
>     Karsten> As far as I can see it is still trying to use some
>     Karsten> gtk-stuff?
> 
> This is a bit of annoyance in the mpl setup.  The backend that is
> chosen at runtime is determined by the rc file (see
> http://matplotlib.sf.net/.matplotlibrc) and the default backend in the
> rc file is GTKAgg.  Even if you turn GTK compilation off in setup.py,
> the rc file still determines which backend is selected.  You need to
> copy that file from its default location (eg
> /usr/share/matplotlib/.matplotlibrc) to your HOME directory and edit
> the 'backend' setting to something else, eg TkAgg, WXAgg or QtAgg.
> 
> While debugging, it is helpful to create a simple script like
> 
>   import pylab
>   pylab.plot([1,2,3])
>   pylab.show()
> 
> and run it with 
> 
>   > python myscript.py --verbose-helpful
> 
> which will show you which rc file is being loaded, which backend is
> selected, what mpl version you are using, and so on.
> 
> 
> Should help,
> JDH
> 
> PS: the bug in pygtk2.4 in fedora core 3 is quite ease to fix.  You
> simply have to replace typename with another name like typename_ or
> some other name as described in the FAQ.