yhat/ggplot — pull request #374 by psychemedia (2014-10-01 09:29:47+00:00)
Title: Fix for py 3

py 3 install gives an error on import:

````
/usr/local/lib/python3.4/dist-packages/ggplot/components/palettes.py in ()
9 from six.moves import range
10
---> 11 import husl
12 from .xkcd_rgb import xkcd_rgb
13

ImportError: No module named 'husl'
````