def fetch(self, label = "INBOX"):
mbox = ImapMailbox( (self.server, label) )
uids = mbox.get_all_uids()
cache = Cache()
for uid in uids:
cached = cache.get_header(uid)
if cached:
yield cached
else:
msg = cache.set_header(uid, mbox.get_fields(uid, 'SUBJECT FROM DATE'))
yield msg
