Message 165252 - Python tracker

Attached is an updated patch against 2.7.3. It solves a bug in the tests and implements Carl's suggestion. The new tests pass and it updates the documentation as well.

As for inclusion in 2.7, as this is in fact solving a bug, I would vote for it. Right now, if the client sends an "Expect" header, httplib will send the body of the request along, which is against the RFC. It is backwards-compatible.