The web page details Python on Google App Engine, explaining the two Python language environments it offers: standard and flexible. Both scale effectively to manage demand but differ in a few ways. The standard environment scales instantaneously to handle traffic spikes and includes a free tier, while the flexible environment can run any framework, library, or binary, and is most cost-effective for applications serving continuous traffic. However, the flexible environment does not include a free tier.
appcfg.py update
http://code.google.com/appengine/docs/python/tools/uploadingdata.html