ok, i did a little digging and this is quickly out of my current realm of understanding.
it seems that the older SDK (http://code.google.com/p/googleappengine/downloads/detail?name=GoogleAppEngineLauncher-1.5.5.dmg&can=1&q=python+os+x) has custom_import re-run on each request, but the new version of the SDK custom_import is not re-run. so the best i can make sense of is that GAE is now caching things, but only parts of the environment? (i could be completely wrong in my analysis as i don't fully understand how web2py sets up the environment, execs code, does imports and caches). all i can say with certainty is that GAE changed something in this SDK version that causes web2py imports to break. any thoughts on how i can better debug this? other notes: i'm running on OS X, and using python2.5 (cause i'm not ready to test and roll-out python 2.7 to my clients quite yet) thanks for the help!
