ImapLib Get Files

def proccess_bitsc(current,year, month):
    filter_time = False
    dirf = '/home/peter/currens/{}/bin/gps'.format(current)
    year = year
    month = str(month).zfill(2)
    ahora = arrow.get('{}-{}-01'.format(year, month))
    server = 'imap.th31l1_1s10nofthefallen.anywhere'
    user = 'whocares'
    password = 'whocancareless'
    m = imaplib.IMAP4_SSL(server, 993)
    m.login(user, password)
    m.select('inbox')
    imaplib._MAXLINE = 4000000
    ahoraf = ahora.strftime('%d-%b-%Y')
    sv = '(SINCE "{}" Subject "Currency rates")'.format(ahoraf)
    resp, items = m.search(None, sv)
    items = items[0].split()
    for emailid in tqdm(items):
        resp, data = m.fetch(emailid, "(RFC822)")
        email_body = data[0][1]
        mail = email.message_from_string(email_body)
        # if mail.get_content_maintype() != 'multipart': continue
        for part in mail.walk():
            if part.get_filename():
                ffname = dirf + '/' + part.get_filename()
                ffname = re.sub('\r\n', '', ffname).replace(' ', '_')
                open(ffname, 'wb').write(part.get_payload(decode=True))