crunching ip addresses

[buran]

in order to get sorted unique ip addresses one should first uniquify and then sort.

I didn't go into details about sorting, because from OP it looked like a means to find the unique ip addresses.

from Python 3.9 there is also IPv4Address.__format__(fmt) for converting into other types (string, binary, hex).

great point, just to add that normally .__format__() is not meant to be invoked directly. I will just copy the example from the docs

>>> format(ipaddress.IPv4Address('192.168.0.1'))
'192.168.0.1'

>>> '{:#b}'.format(ipaddress.IPv4Address('192.168.0.1'))
'0b11000000101010000000000000000001'

>>> f'{ipaddress.IPv6Address("2001:db8::1000"):s}'
'2001:db8::1000'

>>> format(ipaddress.IPv6Address('2001:db8::1000'), '_X')
'2001_0DB8_0000_0000_0000_0000_0000_1000'

>>> '{:#_n}'.format(ipaddress.IPv6Address('2001:db8::1000'))
'0x2001_0db8_0000_0000_0000_0000_0000_1000'