This is usually caused by having an interactive backend (such as Gtk,
Qt, Tk) which would require X11. Try setting your backend to "Agg".
import matplotlib
matplotlib.use("Agg")
Cheers,
Mike
[email protected] wrote:
> I have been successfully producing graphics as pngs with matplotlib and
> running them as cron jobs with Linux for some time. These graphics used
> "standard" colors.
>
> I recently changed some of the colours, using tuples of RGB values instead
> of the standard colors and now the scripts will run from the command line,
> but not as scheduled cron jobs and I get the following error:
>
> Unable to access the X Display, is $DISPLAY set properly?
>
> The script then terminates.
>
> Can anyone help me with how to set the display in cron and run Matplotlib
> as a cron job.
>
> Thanks
> John
>
>
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--
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA
------------------------------------------------------------------------------
Stay on top of everything new and different, both inside and
around Java (TM) technology - register by April 22, and save
$200 on the JavaOne (SM) conference, June 2-5, 2009, San Francisco.
300 plus technical and hands-on sessions. Register today.
Use priority code J9JMT32. http://p.sf.net/sfu/p
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