archive_id = vault.upload_archive('mybackup.tgz')
retrieve_job = vault.retrieve_archive(archive_id)
job_id = retrieve_job.id
retrieve_job = vault.get_job(job_id)
if retrieve_job.completed:
    job.download_to_file('mybackup.tgz')
Using Boto to tell when a file has successfully been uploaded to Glacier