libpcap module for Python
Pcapy is a Python extension module that enables software written in Python to access the routines from the pcap packet capture library. Pcapy is most useful when used together with a packet handling package such as Impacket, a collection of Python classes for constructing and dissecting network packets. This package is now using the "pcapy-ng" fork.
Homepage: https://github.com/stamparm/pcapy-ng/