List of IP addresses in Python to a list of CIDR

Question

How do I convert a list of IP addresses to a list of CIDRs? Google\'s ipaddr-py library has a method called summarize_address_range(first, last) that converts two IP addres

Answer 1

Well, summarize_address_range reduces your problem to splitting your list into consecutive ranges. Given that you can convert IP addresses to integers using

def to_int(str): struct.unpack("!i",socket.inet_aton(str))[0]

this should not be too hard.