ipython/ipython — pull request #4359 by takluyver (2013-10-07 22:40:05+00:00)
Title: test_pylabtools also needs to modify matplotlib.rcParamsOrig

From bbb4baa8ff1010, the code to find a matplotlib backend checks rcParamsOrig instead of rcParams. The tests for pylabtools configure rcParams to control which backend is selected by default, so they need updating to also set rcParamsOrig.

closes gh-4335