  def _get_status_code(self, http_status):
    """Get the HTTP status code from an HTTP status string.

    Args:
      http_status: A string containing a HTTP status code and reason.

    Returns:
      An integer with the status code number from http_status.
    """
    try:
      return int(http_status.split(' ', 1)[0])
    except TypeError:
      _logger.warning('Unable to find status code in HTTP status %r.',
                      http_status)
    return 500