I'm the dev behind uvloop. AMA.

1) What makes uvloop which is based on libuv 2x faster than node.js which is also based on libuv?

2) Can uvloop be used with frameworks like flask or django?

3) gevent uses monkey patching to turn blocking libraries such as DB drivers non-blocking, does uvloop do anything similar? If not how does it work with blocking libraries?

1) I don't know :( I've answered a similar question in this thread with a couple of guesses.

2) No, they have a different architecture. Although I heard that there is a project to integrate asyncio into django to get websockets and http/2.

3) asyncio/uvloop require you to use explicit async/await. So, unfortunately, the existing networking code that isn't built for asyncio can't be reused. On the bright side, there are so many asyncio DB drivers and other modules now!

> 2) No, they have a different architecture

Having a web framework (a next generation Flask if you will) built ground up with concurrency is the missing key. I have used Flask for many years, but this is the right time to introduce a new framework - because of the internal restructuring and slowdown of Flask's maintainers (and I say this with the utmost respect).

If you are keen, this has the potential to be the killer application for Python 3.

I'm actually thinking about writing such a framework :) I'll call it "spin".

Just one point, please make sure you have designed DB access as a core part of your framework (e.g. [1]). Too many frameworks discount database interaction until it's too late.

Oh and please please choose your name so that it doesn't conflict on Google search. http://www.spinframework.org

[1] http://initd.org/psycopg/docs/advanced.html#async-support vs https://github.com/chtd/psycopg2cffi