You're also limited by the number of threads the GAE team will decide you can use per instance.

Correct.

Unfortunately there's a limited number of threads to handle requests (like 8 per instance) and you can't create new long-lived threads. While an improvement, it's not a solution to the problem.

Where do you get the "8 per instance"? I can't find any information about the number of threads per instance. Thanks

Supposedly it will change, but that's what's available in Python 2.7 preview. The number might be different on release, but I don't think the limit itself will be removed.

Ah, I wasn't aware of that... That is too bad...

There's a 'pools beta' that runs your stuff in bsd jail. Worked well with mod_wsgi in my tests (I'm not using it in production though).

"Libraries over frameworks. In Soviet Framework Russia, you don't call code...code call YOU." -- exactly! Very few people get this, which is a shame.

WebOb maintainer here. What's your alternative to copying body to a temp file if you need to make it seekable?