Eric Emsellem wrote:
> Hi,
>
> I am trying to run a relatively large code, which includes some calls to and
> import from pylab/matplotlib, on a remote machine: the part of the code I am
> running is NOT performing any plot so there is no direct access to a display.
> Unfortunately it still crashes with something like:
>
> ---> 40 cursors.MOVE : gdk.Cursor(gdk.FLEUR),
> 41 cursors.HAND : gdk.Cursor(gdk.HAND2),
> 42 cursors.POINTER : gdk.Cursor(gdk.LEFT_PTR),
>
> RuntimeError: could not create GdkCursor object
>
> when it tries to reach the display when importing pylab I guess.
>
> I am now doing this from my laptop from a non-fixed IP and there is no easy
> way
> for me to forward the display (loging e.g. with ssh -X), or to just isolate
> the
> pylab part of the code (lots of files, lots of lines, etc).
>
> I am desperately trying to run this long calculation on that remote machine
> (and
> do it while my laptop is off, using "screen") because I need a lot of memory
> and
> CPU.... How can I overpass this easily (just allowing for the code not to
> crash
> with that initialisation and go on with the rest) ???
Eric,
You need to set a non-interactive backend, typically agg. The method
depends on exactly what you are doing and what your constraints are.
The easiest may be to put a matplotlibrc file in the directory from
which you are starting your ipython session, or running your script.
All it needs to contain is the single line:
backend : Agg
Alternatively, any script can start with
import matplotlib
matplotlib.use('agg')
This has to come before pylab is imported.
Eric
>
> thanks for any input there
>
> Eric
> ========
> running: matplotlib version 0.98.3 Python 2.5.1 (r251:54863, Aug 1 2008,
> 00:35:20) via IPython 0.9.1
>
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