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I don't know, I want to make an HTTP spider and I don't want to have one process per request, so the obvious thing was to use something asynchronous. Still, Python+gevent sounds better than node, so I don't see the advantages of using Javascript for that.

What does it get me over Python+gevent, which has a more natural asynchronous programming syntax?

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> I don't want to have one process per request, so the obvious thing was to use something asynchronous

There's these amazing things called threads you can use too

Why would I do that when 99% of the time is spent waiting on the http call to return?

Because unless you have an unusually high (>1000) concurrency level for your HTTP connections, threads are a more than adequate solution to the problem.

There are also threads, which are typically much easier to program for than an asynchronous system, but will still let you have more than 1 request per process.

I don't know, it seems that greenlets are basically exactly as easy to program with as threads, from a quick skim of the docs.

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