How to use the openweave.WeaveDeviceMgr.ParseNetworkType function in openweave

category = 2
    elif (category == 'detail'):
        category = 3

    try:
        devMgr.SetLogFilter(category)
    except WeaveDeviceMgr.DeviceManagerException, ex:
        print str(ex)
        exit()

    print "Done."

    print ''
    print '#################################scan-network#################################'
    try:
        networkType = WeaveDeviceMgr.ParseNetworkType("wifi")
        scanResult = devMgr.ScanNetworks(networkType)
    except WeaveDeviceMgr.DeviceManagerException, ex:
        print ex
    print "ScanNetworks complete, %d network(s) found" % (len(scanResult))
    i = 1
    for net in scanResult:
        print "  Network %d" % (i)
        net.Print("    ")
        i = i + 1
    try:
        networkType = WeaveDeviceMgr.ParseNetworkType("thread")
        scanResult = devMgr.ScanNetworks(networkType)
    except WeaveDeviceMgr.DeviceManagerException, ex:
        print ex
    print "ScanNetworks complete, %d network(s) found" % (len(scanResult))
    i = 1

print ''
    print '#################################scan-network#################################'
    try:
        networkType = WeaveDeviceMgr.ParseNetworkType("wifi")
        scanResult = devMgr.ScanNetworks(networkType)
    except WeaveDeviceMgr.DeviceManagerException, ex:
        print ex
    print "ScanNetworks complete, %d network(s) found" % (len(scanResult))
    i = 1
    for net in scanResult:
        print "  Network %d" % (i)
        net.Print("    ")
        i = i + 1
    try:
        networkType = WeaveDeviceMgr.ParseNetworkType("thread")
        scanResult = devMgr.ScanNetworks(networkType)
    except WeaveDeviceMgr.DeviceManagerException, ex:
        print ex
    print "ScanNetworks complete, %d network(s) found" % (len(scanResult))
    i = 1
    for net in scanResult:
        print "  Network %d" % (i)
        net.Print("    ")
        i = i + 1

    print ''
    print  '#################################add-network#################################'
    networkInfo = WeaveDeviceMgr.NetworkInfo(
    networkType = WeaveDeviceMgr.NetworkType_WiFi,
    wifiSSID = "Wireless-1",
    wifiMode = WeaveDeviceMgr.WiFiMode_Managed,

scan-networks

          Scan for remote WiFi networks.
        """

        args = shlex.split(line)

        networkType = WeaveDeviceMgr.NetworkType_WiFi

        if (len(args) > 1):
            print "Unexpected argument: " + args[1]
            return

        if (len(args) == 1):
            try:
                networkType = WeaveDeviceMgr.ParseNetworkType(args[0])
            except Exception, ex:
                print "Invalid network type: " + args[0]
                return

        try:
            scanResult = self.devMgr.ScanNetworks(networkType)
        except WeaveDeviceMgr.DeviceManagerException, ex:
            print str(ex)
            return

        print "ScanNetworks complete, %d network(s) found" % (len(scanResult))
        i = 1
        for net in scanResult:
            print "  Network %d" % (i)
            net.Print("    ")
            i = i + 1