Encountered initially trying to work with:
https://github.com/amueller/word_cloud/blob/master/examples/simple.py

Then tried the matplotlib xkcd example.

I run the file python xkcd.py and the command runs, and returns (0 exit status), but no windows are displayed and no errors are given.

I'm running the latest cygwin x64 with a virtualenv running python 3.4.3 and matplotlib 1.5.1

I'm willing to help hunt down the issue. But I don't know where to start.