Shift A records to a new IP for any number of domains at a time using Slicehost's API. Requires http://code.google.com/p/pyactiveresource/

slicehost_zone_batch_update.py

from pyactiveresource.activeresource import ActiveResource
from pyactiveresource.connection import UnauthorizedAccess


#### CONFIGURATION ####
from_ip = 'xxx.xxx.xxx.xxx'
to_ip = 'xxx.xxx.xxx.xxx'
update_domains = ('domain1.com.','domain2.net.','otherdomain.org.')
api_key = 'xxxxx_YOUR_API_KEY_HERE_xxxxx'
api_url = 'https://%s@api.slicehost.com/' % api_key


#### Resource classes ####
class Zone(ActiveResource):
    _site = api_url

class Record(ActiveResource):
    _site = api_url

#### Processing ####
zones_found = []
zones_not_found = []
records_found = []
try:
    for domain in update_domains:
        z = Zone.find(origin=domain)
        if z:
            z = z[0] # 'find' returns a list; extract this item to ease of use
            zones_found.append(z.origin)
            records = Record.find(zone_id=z.id, record_type='A', data=from_ip)
            for record in records:
                records_found.append(record.name)
                record.data = to_ip
                record.save()
        else:
            zones_not_found.append(domain)
    
except UnauthorizedAccess:
    print 'Access denied. Please confirm your API key is correct.'
except:
    print 'An unknown error has occurred.'
else:
    print 'Found %d zones.' % len(zones_found)
    print 'Found %d A records.' % len(records_found)
    if zones_not_found:
        print '\nFailed to find the following zones:\n\t%s' % '\n\t'.join(zones_not_found)