https://github.com/embr/userstats

"We're pleased to release version 0.1.0 of the userstats Python library and command-line tool for computing user-centric metrics on Wikipedia users. The goal of the software is to make it easy for project owners to track the contributions and status of users involved in their project. It is also intended to be easily extensible so that custom metrics can be added using only a few lines of Python code."

From the "Global Learning and Grantmaking" section of the September WMF

report: https://blog.wikimedia.org/2012/10/31/wikimedia-foundation-report-september-...