问Python无法向Thunderbird Mbox添加消息

EN

mboxfile = "/home/jan/.thunderbird/gkzlvipz.default/ImapMail/mail.jan.info/INBOX"

print("opening: "+mboxfile)

mbox = mailbox.mbox(mboxfile)

mbox.lock()

try:

    print("Trying:Begins")

    msg = mailbox.mboxMessage()

    msg.set_unixfrom('author Sat Feb  7 01:05:34 2020')

    msg['From'] = 'info@jan.info'

    msg['To'] = 'ljan@gmail.com'

    msg['Subject'] = 'JL Python Sample message 1'

    msg.set_payload('This is the body.\nFrom (should be escaped).\nThere are 3 lines.\n')

    mbox.add(msg)

    mbox.flush()

    print("Trying:Ends")

except Exception as e:

    # Just print(e) is cleaner and more likely what you want,

    # but if you insist on printing message specifically whenever possible...

    Print("Exception - FAILED")

    if hasattr(e, 'message'):

        print("Error 1: " + e.message)

    else:

        print("Error 2: " + e)    

finally:

    print("Finally")

    mbox.unlock()

sys.exit("PYTHON ENDS: TEST EMAIL SEND FINISHED")

*** PYTESTTHUNDERBIRD BEGINS ***
opening: /home/jan/.thunderbird/gkzlvipz.default/ImapMail/mail.jan.info/INBOX

Trying:Begins

Trying:Ends

Finally

PYTHON ENDS: TEST EMAIL SEND FINISHED