If you use a C library and have hardly any Python code running it obviously goes faster. That misses the point I was making. At some point you'll have to write

If you use a C library and have hardly any Python code running it obviously goes faster. That misses the point I was making. At some point you'll have to write some Python code, and that will lower the number of requests dramatically. If you're talking millions of requests per second, you will have maybe 10s of thousands of CPU cycles per request. That doesn't buy you much in Python. Case in point: parsing a trivial json string in Python eats up your budget. Of course, most websites aren't dealing with anywhere near that volume of requests, and then Python is fine. Pypy is interesting, but last time I looked it didn't support C extensions and hence can't be used with the poster's library.