On 21/12/2011 15:26, anatoly techtonik wrote: > I believe most AppEngine applications in Python are still using 2.5 > run-time. So are development boxes for these applications. It may take > another year or two for the transition. App engine 1.6 improved support of Python 2.7, so I hope that -slowly- everybody will move to Python 3. Oops, I mean Python 2.7 ;-) http://code.google.com/appengine/docs/python/python27/ Victor