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  # by the network status being down for at least 30 minutes, as determined
  # by the .pk file capturing the network status (generated by the
  # network_monitor.py script).
  #
  # Specifically, if the most recent three values of the .pk are all 0s, and
  # we have been up and running for at least 30 minutes, restart.
  elif running_minutes > minimum_uptime_minutes:
    results = MostRecentNetworkStatuses(number_of_intervals)
    (
        network_status_list, last_day, last_interval,
        first_day, first_interval) = results
    # Sum the list, handling strings in the list as if they were 0s
    sum_network_status_list = sum(
        [x if isinstance(x, int) else 0 for x in network_status_list])
    if network_status_list and not sum_network_status_list:  # all zeros
      msg = (
          'Running for %d minutes yet no network for %d intervals (index %d of '
          'day %s to index %d of day %s); rebooting in attempt to re-establish '
          'network connectivity' % (
              running_minutes, number_of_intervals,
              first_day, first_interval, last_day, last_interval))
      rpi_restart = True

  if rpi_restart:
    Log(msg)
    SHUTDOWN_SIGNAL = msg
    return rpi_restart

  # ----------------------------------------------------------------------------
  # Only get here if neither process nor RPi restart
  # ----------------------------------------------------------------------------
  return rpi_restart


def MostRecentNetworkStatuses(number_of_intervals):
  """Returns a list of the most recent number of network statuses.

  The network status is managed by network_monitory.py, which, every few
  minutes updates the .pk file with the current network status.  The data
  structure is a dictionary with day names (i.e.: 12-30-2022) and a list
  of 0s & 1s indicating network down / up respectively, for consecutive




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  # by the network status being down for at least 30 minutes, as determined
  # by the .pk file capturing the network status (generated by the
  # network_monitor.py script).
  #
  # Specifically, if the most recent three values of the .pk are all 0s, and
  # we have been up and running for at least 30 minutes, restart.
  elif running_minutes > minimum_uptime_minutes:
    results = MostRecentNetworkStatuses(number_of_intervals)
    (
        network_status_list, last_day, last_interval,
        first_day, first_interval) = results
    # Sum the list, handling strings in the list as if they were 0s
    sum_network_status_list = sum(
        [x if isinstance(x, int) else 0 for x in network_status_list])
    if network_status_list and not sum_network_status_list:  # all zeros
      msg = (
          'Running for %d minutes yet no network for %d intervals (index %d of '
          'day %s to index %d of day %s); rebooting in attempt to re-establish '
          'network connectivity' % (
              running_minutes, number_of_intervals,
              first_interval, first_day, last_interval, last_day))
      rpi_restart = True

  if rpi_restart:
    Log(msg)
    SHUTDOWN_SIGNAL = msg
    return rpi_restart

  # ----------------------------------------------------------------------------
  # Only get here if neither process nor RPi restart
  # ----------------------------------------------------------------------------
  return rpi_restart


def MostRecentNetworkStatuses(number_of_intervals):
  """Returns a list of the most recent number of network statuses.

  The network status is managed by network_monitory.py, which, every few
  minutes updates the .pk file with the current network status.  The data
  structure is a dictionary with day names (i.e.: 12-30-2022) and a list
  of 0s & 1s indicating network down / up respectively, for consecutive




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