alphagov/pp-puppet — pull request #436 by paulfurley (2014-05-27 11:35:22+00:00)
Title: Add dev dependencies for building python lxml

When you try and `pip install lxml` it builds the source package. This
requires 3 dev packages be installed on the system.

See http://stackoverflow.com/a/6504860

See https://www.pivotaltracker.com/story/show/72070958

[#72070958]