def get_available_wifi_networks()

in deepracer_systems_pkg/deepracer_systems_pkg/network_monitor_module/wifi_config_utils.py [0:0]

• 24 lines of code
• 8 McCabe index (conditional complexity)

def get_available_wifi_networks():
    """Returns available WiFi networks as a list sorted by signal strength.

    Returns:
        list: List of available WiFi networks.
    """
    try:
        cmd = ["nmcli",
               "-terse",
               "-colors", "no",
               "-fields", "ssid,signal",
               "-escape", "no",
               "device", "wifi"]

        p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
        out, err = p.communicate()
        if (p.returncode != 0) or (err != ""):
            raise Exception(err)

        network_dict = dict()
        for line in out.splitlines():
            try:
                network, signal = line.split(":", 1)
                if (network not in network_dict) or (int(signal) > network_dict[network]):
                    network_dict[network] = int(signal)
            except Exception as ex:
                pass

        return sorted(network_dict.items(), key=operator.itemgetter(1), reverse=True)

    except Exception as ex:
        print(f"Failed to retrieve available WiFi networds: {ex}")
        return list()