def get(self):
    mail = imaplib.IMAP4('xxx@gmail.com',993)

    mail.login('email@gmail.com','password')

    type, data = mail.search(None, 'ALL')
    mail_ids = data[0]

    id_list = mail_ids.split()
    first_email_id = int(id_list[0])
    latest_email_id = int(id_list[-1])

    for i in range(latest_email_id,first_email_id, -1):
        typ, data = mail.fetch(i, '(RFC822)' )

        for response_part in data:
            if isinstance(response_part, tuple):
                msg = email.message_from_string(response_part[1])
                email_subject = msg['subject']
                email_from = msg['from']
                self.response.headers["Content-Type"] = "text/plain"
                self.response.write("From:" + email_from)
                self.response.write("Subject:" + email_subject)


routes = [('/', ReadMail),]

app = webapp2.WSGIApplication(routes, debug=True)