#!/usr/bin/env python

import imaplib
from datetime import datetime, timedelta
from os import environ

with imaplib.IMAP4_SSL(environ["IMAP_SERVER"]) as M:
    M.login(environ["IMAP_USER"], environ["IMAP_PASSWD"])
    for i in M.list(pattern="Promotions.*")[1]:
        M.select(i.decode().split(' "." ')[1])
        typ, data=M.search(None, '(BEFORE "'+(datetime.now()-timedelta(days=7)).strftime("%d-%b-%Y")+'")')
        for j in data[0].split():
          M.store(j, "+FLAGS", "\\Deleted")
        M.expunge()