Python中如何接收邮件？

import imaplib
import email
from email.header import decode_header

# 连接到邮件服务器
mail = imaplib.IMAP4_SSL('imap.gmail.com')
mail.login('your_email@gmail.com', 'your_password')
mail.select('inbox')

# 搜索所有邮件
_, message_numbers = mail.search(None, 'ALL')

for num in message_numbers[0].split():
    _, msg = mail.fetch(num, '(RFC822)')
    for response_part in msg:
        if isinstance(response_part, tuple):
            message = email.message_from_bytes(response_part[1])

            # 解码邮件主题
            subject, encoding = decode_header(message['Subject'])[0]
            if isinstance(subject, bytes):
                subject = subject.decode(encoding or 'utf-8')

            print('Subject:', subject)

            # 解码发件人
            from_, encoding = decode_header(message.get('From'))[0]
            if isinstance(from_, bytes):
                from_ = from_.decode(encoding or 'utf-8')
            print('From:', from_)

            # 如果邮件是多部分的，遍历所有部分
            if message.is_multipart():
                for part in message.walk():
                    content_type = part.get_content_type()
                    content_disposition = str(part.get('Content-Disposition'))
                    if content_type == 'text/plain' and 'attachment' not in content_disposition:
                        body = part.get_payload(decode=True).decode()
                        print('Body:', body)
            else:
                body = message.get_payload(decode=True).decode()
                print('Body:', body)

mail.close()
mail.logout()