Google App Engine -- Java or Python?
google-app-engine, java, python
Solution
By this time, both implementations are reasonably mature and solid, and their functionality is pretty similar (I don't think it's quite 100% equal yet, but, moving in that direction). So, if you already know only one of the two languages, I'd say "just go for it". If you already know both, you don't need my advice;-).
If you know neither, but are rarin' to try some of the non-Java languages that are (more or less;-) supported on the JVM side of GAE (I believe this includes Scala, server-side Javascript, JRuby, etc), then it's worth trying. If you know neither, and don't want to risk a "not-first-class-supported language", I'd definitely agree with your observation that Python's faster to learn (but of course I'm biased in favor of Python;-).
Problem
I noticed that this was asked in the following post. Has anyone used both and can conclusively tell me which is better? It seems like python might be a little easier to implement and faster?