Packet hacking

I want to be able to write low level tools in Python

1. Examine packet dumps
2. Write tools to do a "man in the middle" approach to tapping into a data stream.

(For legitimate reasons!)

Some available python tools

dpkt - looks most promising today

pcaputils - seems like it's not being developed http://www.jjguy.com/pcaputils/pcaputils.html

scapy - more like an interactive tool than a toolkit