program/scrpt wanted (in python, of course)

[snippsat]

Use ipaddress module,handles IPv4 and IPv6 addresses.

>>> import ipaddress

>>> ip_1 = ipaddress.ip_address('fc00::1')
>>> ip_2 = ipaddress.ip_address('fc00:0:2::1')
>>> ip_1 < ip_2
True

Address and Network objects are not sortable by default.
If still need to do it there is ipaddress.get_mixed_type_key that be used  as a key in sorted().

import ipaddress

>>> ip_1 = ipaddress.ip_address('fc00::9')
>>> ip_2 = ipaddress.ip_address('fc00::5')
>>> ip_3 = ipaddress.ip_address('fc00::3')
>>> ip_4 = ipaddress.ip_address('fc00::100')
>>> sorted([ip_1, ip_2, ip_3, ip_4], key=ipaddress.get_mixed_type_key)
[IPv6Address('fc00::3'), IPv6Address('fc00::5'), IPv6Address('fc00::9'), IPv6Address('fc00::100')]