def kill_old_ids(old_ids, client):
    for app in old_ids:
        try:
            log.info("Killing %s", app)
            delete_marathon_app(app, client)
        except:
            continue
usage: lx export-download-urls [id|name]...
dataset/ETHPy150Open Yelp/paasta/paasta_tools/bounce_lib.py/kill_old_ids--crossover with--dataset/ETHPy150Open iambus/xunlei-lixian/lixian_plugins/commands/export_download_urls.py/export_download_urls