python/java conflict? version problems?

[rcp]

OSX 10.6.8; I'm running a jsonengine (app engine with the java framework) instance fine and have run an app engine instance with the python framework with no problem in the past.

Now, I can't get the app engine (python) simulator to work on this OSX box. The launcher starts ok, the test application indicates "green", but when I direct the browser to the localhost address, the gae Launcher log spews Python 2.6 errors and the browser reports http 500.

I have seen that gae wants python 2.5 or 2.7 and I have tried to install each with no success, and I can't figure out how to "switch" from one python framework to another. How is this supposed to work? Is there a "verify your python install" process somewhere?

Or, is it perhaps a collision between gae java and gae python? Thanks for any suggestions.

[rcp]

nevermind! I had a corrupt app.yaml