App Engine Pipefitters is a unit of the Pipefitters Union, focusing on pluggable Python components for Google App Engine (GAE), with an emphasis on Pylons and WSGI tools. This wiki collects information on the Python tools available, features & limitations of the GAE runtime environment, and Python code examples for GAE. (Note: pipefitters is sometimes spelled pypefitters.)

Discussion takes place in the appengine-pipefitters Google Group. An umbrella website is also in the works. See also the Planet Pypefitters aggregator.