def swift_form_post_submit(file_list, url, hmac_body, signature):
    """Send the files to swift via the FormPost middleware"""

    # We are uploading the file_list as an HTTP POST multipart encoded.
    # First grab out the information we need to send back from the hmac_body
    payload = {}

    (object_prefix,
     payload['redirect'],
     payload['max_file_size'],
     payload['max_file_count'],
     payload['expires']) = hmac_body.split('\n')
    payload['signature'] = signature

    # Loop over the file list in chunks of max_file_count
    for sub_file_list in (file_list[pos:pos + int(payload['max_file_count'])]
                          for pos in xrange(0, len(file_list),
                                            int(payload['max_file_count']))):
        if time.time() < payload['expires']:
            raise Exception("Ran out of time uploading files!")
        files = {}
        # Zuul's log path is generated without a tailing slash. As such the
        # object prefix does not contain a slash and the files would be
        # uploaded as 'prefix' + 'filename'. Assume we want the destination
        # url to look like a folder and make sure there's a slash between.
        filename_prefix = '/' if url[-1] != '/' else ''
        for i, f in enumerate(sub_file_list):
            if os.path.getsize(f['path']) > int(payload['max_file_size']):
                sys.stderr.write('Warning: %s exceeds %d bytes. Skipping...\n'
                                 % (f['path'], int(payload['max_file_size'])))
                continue
            files['file%d' % (i + 1)] = (filename_prefix + f['filename'],
                                         open(f['path'], 'rb'),
                                         get_file_mime(f['path']))
        requests.post(url, data=payload, files=files)
dataset/ETHPy150Open openstack/turbo-hipster/turbo_hipster/lib/utils.py/swift_form_post_submit/swapped operands of `<`