python使用mailbox打印电子邮件的方法

import mailbox
mailboxname = "/tmp/mymailbox"
mbox = mailbox.UnixMailbox(open(mailboxname))
msgcounter = 0
while 1:
  mailmsg = mbox.next()
  if not mailmsg:
    break
  msgcounter = msgcounter + 1
  messagebody = mailmsg.fp.read()
  print messagebody
print
print "The message counter is %d" % (msgcounter)