in iptables.py [0:0]
def __init__(self, chain, line_number, action, protocol, option, source, destination, extensions):
self.chain = chain
self.line_number = line_number
self.action = action
self.protocol = protocol
self.option = option
self.source = source
self.as_net = netaddr.IPNetwork(source)
self.destination = destination
self.extensions = extensions