batch_mail.py

import imaplib

HOST = "imap.gmail.com"
USER = "[email protected]"
PASSWORD = "---"

BATCH_FOLDER = "Batch"
INBOX_FOLDER = "\\Inbox"


def batch_mail():
    server = imaplib.IMAP4_SSL(HOST)
    server.login(USER, PASSWORD)
    server.select(BATCH_FOLDER)

    typ, [msg_uids] = server.uid("SEARCH", "ALL")
    msg_uids = msg_uids.replace(' ', ',')

    if msg_uids:
        server.uid("STORE", msg_uids, "+X-GM-LABELS", INBOX_FOLDER)

        server.uid("STORE", msg_uids, "+FLAGS.SILENT", r"(\Deleted)")
        server.uid("EXPUNGE", msg_uids)

    print msg_uids
    return msg_uids


# noinspection PyUnusedLocal
def lambda_handler(event, context):
    return batch_mail()


if __name__ == '__main__':
    batch_mail()