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#!/usr/bin/env python3

import dns.name

n = dns.name.from_text("www.dnspython.org")
o = dns.name.from_text("dnspython.org")
print(n.is_subdomain(o))  # True
print(n.is_superdomain(o))  # False
print(n > o)  # True
rel = n.relativize(o)  # rel is the relative name www
n2 = rel + o
print(n2 == n)  # True
print(n.labels)  # ['www', 'dnspython', 'org', '']