zonename = os.path.basename(filename)
zone = dns.zone.from_file(filename, zonename, relativize=False)
for name, ttl, rdata in zone.iterate_rdatas(ip_family):
zonename = os.path.basename(filename)
zone = dns.zone.from_file(filename, zonename, relativize=False)
for name, ttl, rdata in zone.iterate_rdatas(ip_family):