Porting python fix over from opscode-omnibus, otherwise health checks fail when building this on CentOS 6.
See https://github.com/opscode/opscode-omnibus/blob/1.4-stable/config/software/python.rb#L48-L49
Merge pull request #227 from juliandunn/fix-python-dynload-silliness

Porting python fix over from opscode-omnibus