On Fri, Jun 8, 2012 at 3:36 AM, Maximilian Fabricius
<mfabric...@gmail.com> wrote:
> it seems that whenever I plot something, a window opens.
>
> from matplotlib import pylab
> import numpy
> pylab.plot(numpy.random.normal(size=100))
>
> Now, I have code that is supposed to produce diagnostic plots as PDFs. Only

Before importing pylab, do

import matplotlib
matplotlib.use('pdf')

The FAQ for using mpl in a web app server is pretty relevant to this use case

http://matplotlib.sourceforge.net/faq/howto_faq.html#matplotlib-in-a-web-application-server

JDH

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