Best replacement for pyzmail in lines 15 and 16

[Pedroski55]

I have the following to collect emails and write the text to a file. It works. I know they say "If it ain't broke don't fix it." However I've been told pyzmail is old, maybe as Python renews one day it will not work. So I thought I would try and use the module email or imaplib. I import the following at present:

import sys, os
import pyzmail
import email
from imapclient import IMAPClient
from shutil import copy2

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for uid, message_data in server.fetch(unseenMessages, 'RFC822').items():         email_message = email.message_from_bytes(message_data[b'RFC822'])         print('UID is ' + str(uid))         print(email_message.get('Subject'))         messageSubject = str(email_message.get('Subject'))         print('Message subject is ' + messageSubject)         messageBody = str(email_message.get('Body'))         print('Message body is ' + messageBody)         #if not len(messageSubject) == 15:             #continue         file = messageSubject + '.txt'         theFile = open(path + file, 'w')         rawMessage = server.fetch(unseenMessages, ['BODY[]', 'FLAGS'])         try:             message = pyzmail.PyzMessage.factory(rawMessage[uid][b'BODY[]'])             text = message.text_part.get_payload().decode(message.text_part.charset)             saveText = text.rstrip()             theFile.write(saveText)             theFile.close()         except AttributeError:             continue

Any tips please about the best way to replace lines 15 and 16? I've been reading the email "get_payload([i[, decode]])" documentation, but I can't really see how it works in practice. I have tried in a shell, but so far no joy, If you know of any links to a simple working example, please let me know.