Any good Python HTTP proxies?

There is a long list of python http proxies. Does anyone have experience with them and have any recommendations? I n开发者_JAVA百科eed to run a proxy for automation tests running on a windows machine in IE. I want a proxy that has an API for monitoring traffic, so I can give go signals to the automation tests when a page appears to have stopped making requests.

The list seems to be quite old. I would have a look at Twisted. According to this documentation there's something available.