code: def read_mail(window):
      
      mail = imaplib.IMAP4_SSL(IMAP_SERVER)
  
      (retcode, capabilities) = mail.login(LOGIN_EMAIL, LOGIN_PASSWORD)
      mail.list()
      typ, data = mail.select('Inbox')
      n = 0
      now = datetime.now()
      # get messages from today
      search_string = '(SENTON {}-{}-{})'.format(now.day, calendar.month_abbr[now.month], now.year)
      (retcode, messages) = mail.search(None, search_string)
      if retcode == 'OK':
          msg_list = messages[0].split()  # message numbers are separated by spaces, turn into list
          msg_list.sort(reverse=True)  # sort messages descending
          for n, message in enumerate(msg_list):
              if n >= MAX_EMAILS:
                  break
              from_elem = window.FindElement('{}from'.format(n))
              date_elem = window.FindElement('{}date'.format(n))
              from_elem.Update('')  # erase them so you know they're changing
              date_elem.Update('')
              window.Refresh()
              typ, data = mail.fetch(message, '(RFC822)')
              for response_part in data:
                  if isinstance(response_part, tuple):
                      original = email.message_from_bytes(response_part[1])
                      date_str = original['Date'][:22]
                      from_elem.Update(original['From'])
                      date_elem.Update(date_str)
                      window.Refresh()
docs: Reads late emails from IMAP server and displays them in the Window
      :param window: window to display emails in
      :return: