old_contents: import dns.resolver
  
  def main():
  	answers = dns.resolver.query('dnspython.org', 'MX')
  	for rdata in answers:
      		print 'Host', rdata.exchange, 'has preference', rdata.preference
  
new_contents: import dns.resolver
  
  def main():
  	answers = dns.resolver.query('dnspython.org', 'MX')
  	for rdata in answers:
      		print ('Host', rdata.exchange, 'has preference', rdata.preference)
  
subject: Update __init__.py