User blog comment:RansomTime/An introduction to Pywikipediabot/@comment-188432-20120723234141/@comment-188432-20120817162930

Mountan Lion (10.8) now has the default python version of 2.7.2, which was the latest version of python as of 20 June 2012. This means that Randomtime's assertion that "you can skip [installing Python]' on a Mac is once again completely true – as long as you're running Mountain Lion.

However, do be aware that if you're still using Lion, you'll want to update Python at some point. You can still run pywikipedia without updating python, but you'll get the annoying message I've described, above.

If you're using Snow Leopard or below, you may actually need to update to the latest version of python, unless you can get older versions of the pywikipedia files that work with your Mac OS-default installation of python.