The documentation presented on http://matplotlib.sourceforge.net/examples is a very good source of information but on some pages it doesn’t give all the data needed to have the example running.
Indeed, some example needs external files and they are not given in the web documentation, for example :
http://matplotlib.sourceforge.net/examples/user_interfaces/mpl_with_glade.html needs “mpl_with_glade.glade”
http://matplotlib.sourceforge.net/examples/user_interfaces/embedding_in_wx3.html needs “…/data/embedding_in_wx3.xrc”
I thing there should be some links on the web pages to download theses files.
At least, it should be said in the docstring where to find them, don’t you think ?