matplotlib and Zope

For importing External Method in Zope, what is the module

    > to
    > import?

    > Create a file (e.g. in INSTANCEHOME\Extensions.

Hey Sascha, thanks for this example. If you get some time, could you
add it to the matplotlib wiki at

I have one suggestion: you need to be careful to do

import matplotlib

*before* importing pylab, in case the default matplotlibrc setting has
a GUI backend (eg 'backend : GTKAgg')