old_contents: import imaplib
  import time
  
  timevalues = [2000000000, 2000000000.0, time.localtime(2000000000),
                '"18-May-2033 05:33:20 +0200"', '"18-May-2033 13:33:20 +1000"']
  
  check = timevalues[2]
  
  for t in timevalues:
      if check <> imaplib.Internaldate2tuple('INTERNALDATE ' + imaplib.Time2Internaldate(t)):
          print 'incorrect result when converting', `t`
  
new_contents: import imaplib
  import time
  
  # We can check only that it successfully produces a result,
  # not the correctness of the result itself, since the result
  # depends on the timezone the machine is in.
  
  timevalues = [2000000000, 2000000000.0, time.localtime(2000000000),
                "18-May-2033 05:33:20 +0200"]
  
  for t in timevalues:
      imaplib.Time2Internaldate(t)
  
subject: revert to version 1.2