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okay, i give up.

explain to me how it's possible to run any significant WSGI app inside this container. wouldn't any long-running request monopolize the whole server?

i don't have a lot of exposure to other WSGI apps besides my own, but I always use synchronous, blocking development techniques when building them, including blocking database calls.

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That's correct. This is why most WSGI people (such as Graham Dumpleton, author of mod_wsgi) are opposed to adding any sort of async stuff to the WSGI spec as well.

twisted does it by using deferToThread (so the call sits in a thread pool and the reactor doesn't block).

I suppose they just need their twisted loop clone thing to implement deferToThread now.

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