MVPS to BIND RPZ converter

import sys

fn = sys.argv[1]

print("""
;
; BIND RPZ
;

$TTL    3600
@       IN      SOA     mvps.rpz.zone. mvps.rpz.zone. (
                              2         ; Serial
                         604800         ; Refresh
                          86400         ; Retry
                        2419200         ; Expire
                         604800 )       ; Negative Cache TTL
;

@       IN      NS      localhost.
""")

for line in open(fn, 'r'):
    p = line.find('#')
    line = line[:p].strip()

    if line:
        parts = line.split(' ')
        host = parts[1]
        if host != "localhost":
            print("{:52s} CNAME .".format(host))
            print("*.{:50s} CNAME .".format(host))