如何使用python IMAP从gmail中删除电子邮件？

Question

I am trying to read otp from mail and after that I want to delete that email from gmail option. I have no problem in reading email but I am not able to delete mail. I tried some code from stackoverflow. below is my code.

def getOtpMail(vEmail, vPaasword):
    connection = imaplib.IMAP4_SSL(IMAP_URL)  # stablish connection with IMAP server
    try:
        connection.login(vEmail, vPaasword)  # Login with userid password
    except Exception as e:
        print(e)
        return

    loopLock = True

    while loopLock:
        # fetch
        connection.select('"INBOX"', readonly=True)
        retCode, messages = connection.search(None, '(UNSEEN)')
        print(messages[0])

        latest = int(messages[0].split()[-1])

        res, msg = connection.fetch(str(latest), "(RFC822)")

        for response in msg:
            if isinstance(response, tuple):
                print('\n------------email--------------\n')
                msg = email.message_from_bytes(response[1])
                if SENDER_NAME in msg['From'] and KEYWORD in msg['Subject']:
                    loopLock = False
                # fetch required information
                    for part in msg.walk():
                        body = part.get_payload()
                        word_list = body.split()
                        index = word_list.index('verification')
                        otp = word_list[index + 3].strip('.')

                        #delete mail - below two line not working
                        connection.store(str(latest), '+FLAGS', '"[Gmail]/Trash"')
                        print(connection.expunge())

                        return otp
                else:
                    continue

I read documentation and print connection.expunge() so I got response as ('NO', [b'EXPUNGE attempt on READ-ONLY folder (Failure)']) . I think issue I have to establish connection in WRITE mode. I am not sure about it.

Answer 1

In this issue, I opened mail box in readonly mode. Hence my program not able to write and store in IMAP server. I changed

connection.select('"INBOX"', readonly=True)

to

connection.select('"INBOX"', readonly=False)

also I changed command type and flag type in store method -

connection.store(str(latest), '+FLAGS', '"[Gmail]/Trash"')

to

connection.store(str(latest), '+FLAGS', '\\Deleted')

.