# rpm -q python-twisted-names
python-twisted-names-0.3.0-3.el5
# cat zone 
zone = [
    SOA(
        # For whom we are the authority
        'example-domain.com',

        # This nameserver's name
        mname = "ns1.example-domain.com",

        # Mailbox of individual who handles this
        rname = "root.example-domain.com",

        # Unique serial identifying this SOA data
        serial = 2003010601,

        # Time interval before zone should be refreshed
        refresh = "1H",

        # Interval before failed refresh should be retried
        retry = "1H",

        # Upper limit on time interval before expiry
        expire = "1H",

        # Minimum TTL
        minimum = "1H"
    ),

    A('example-domain.com', '127.0.0.1'),
    NS('example-domain.com', 'ns1.example-domain.com'),

    CNAME('www.example-domain.com', 'example-domain.com'),
    CNAME('ftp.example-domain.com', 'example-domain.com'),

    MX('example-domain.com', 0, 'mail.example-domain.com'),
    A('mail.example-domain.com', '123.0.16.43')
]

# twistd -n dns --pyzone zone 
Traceback (most recent call last):
  File "/usr/bin/twistd", line 21, in ?
    run()
  File "/usr/lib64/python2.4/site-packages/twisted/scripts/twistd.py", line 27, in run
    app.run(runApp, ServerOptions)
  File "/usr/lib64/python2.4/site-packages/twisted/application/app.py", line 374, in run
    config.parseOptions()
  File "/usr/lib64/python2.4/site-packages/twisted/application/app.py", line 354, in parseOptions
    usage.Options.parseOptions(self, options)
  File "/usr/lib64/python2.4/site-packages/twisted/python/usage.py", line 187, in parseOptions
    self.subOptions = parser()
  File "/usr/lib64/python2.4/site-packages/twisted/application/app.py", line 366, in <lambda>
    yield (plug.tapname, None, lambda: plug.options(), plug.description)
  File "/usr/lib64/python2.4/site-packages/twisted/scripts/mktap.py", line 205, in get
    return namedAny(self.module).Options
  File "/usr/lib64/python2.4/site-packages/twisted/python/reflect.py", line 357, in namedAny
    topLevelPackage = __import__(trialname)
  File "/usr/lib64/python2.4/site-packages/twisted/names/tap.py", line 12, in ?
    from twisted.names import dns
  File "/usr/lib64/python2.4/site-packages/twisted/names/dns.py", line 116, in ?
    class IRecord(components.Interface):
AttributeError: 'module' object has no attribute 'Interface'
#