Awhile ago I used pip to install python's cssselect.  I'm not sure (should have taken notes!), but it seems like it was difficult, requiring that I get in and install various c libraries.  This time it was effortless.  Here are the instructions that I followed:

http://www.installion.co.uk/ubuntu/saucy/universe/p/python-cssselect/en/install/index.html