I am trying to control multiple objects in unity with position data comming from python. The position data is read as a csv filein python and then send to unity. The data is being send when I am not mistaken, but unity is not doing anything. Does anyone know why?

Python send code

import socket
import time

host, port = "127.0.0.1", 25001
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) # Allow reuse of the port
sock.connect((host, port))

startPos1 = [0, 0, 0] # Initial position for Cylinder1
startPos2 = [0, 0, 0] # Initial position for Cylinder2

try:
    while True:
        time.sleep(0.5) # Sleep 0.5 sec
        
        # Update positions
        startPos1[0] += 0.1 # Increase x by 0.1 for Cylinder1
        startPos2[1] += 0.1 # Increase y by 0.1 for Cylinder2
        
        # Convert positions to string format expected by Unity
        posString1 = '(' + ','.join(map(str, startPos1)) + ')'
        posString2 = '(' + ','.join(map(str, startPos2)) + ')'
        posString = f"pos1:{posString1};pos2:{posString2}"
        
        print(posString)
        
        # Send position string to Unity
        sock.sendall(posString.encode("UTF-8"))
        
        # Receive and print the response from Unity
        receivedData = sock.recv(1024).decode("UTF-8")
        print(receivedData)
finally:
    sock.close() # Ensure the socket is closed when done

Unity receiving code

using System.Collections;
using System.Collections.Generic;
using System.Net;
using System.Net.Sockets;
using System.Text;
using UnityEngine;
using System.Threading;

public class CSharpForGIT : MonoBehaviour
{
    Thread mThread;
    public string connectionIP = "127.0.0.1";
    public int connectionPort = 25001;
    IPAddress localAdd;
    TcpListener listener;
    TcpClient client;

    public GameObject cylinder1;
    public GameObject cylinder2;
    Vector3 receivedPos1 = Vector3.zero;
    Vector3 receivedPos2 = Vector3.zero;

    bool running;

    private void Update()
    {
        transform.position = receivedPos; //assigning receivedPos in SendAndReceiveData()
        cylinder1.transform.position = receivedPos1;
        cylinder2.transform.position = receivedPos2;
    }

    private void Start()
    {
        ThreadStart ts = new ThreadStart(GetInfo);
        mThread = new Thread(ts);
        mThread.Start();
    }

    void GetInfo()
    {
        localAdd = IPAddress.Parse(connectionIP);
        listener = new TcpListener(IPAddress.Any, connectionPort);
        listener.Start();

        client = listener.AcceptTcpClient();

        running = true;
        while (running)
        {
            SendAndReceiveData();
        }
        listener.Stop();
    }

    void SendAndReceiveData()
    {
        NetworkStream nwStream = client.GetStream();
        byte[] buffer = new byte[client.ReceiveBufferSize];

        //---receiving Data from the Host----
        int bytesRead = nwStream.Read(buffer, 0, client.ReceiveBufferSize); //Getting data in Bytes from Python
        string dataReceived = Encoding.UTF8.GetString(buffer, 0, bytesRead); //Converting byte data to string

        if (dataReceived != null)
        {
            //---Using received data---
            receivedPos = StringToVector3(dataReceived); //<-- assigning receivedPos value from Python
            print("received pos data, and moved the Cube!");

            //---Sending Data to Host----
            byte[] myWriteBuffer = Encoding.ASCII.GetBytes("Hey I got your message Python! Do You see this massage?"); //Converting string to byte data
            nwStream.Write(myWriteBuffer, 0, myWriteBuffer.Length); //Sending the data in Bytes to Python
        }
    }

    public static Vector3 StringToVector3(string sVector)
    {
        // Remove the parentheses
        if (sVector.StartsWith("(") && sVector.EndsWith(")"))
        {
            sVector = sVector.Substring(1, sVector.Length - 2);
        }

        // split the items
        string[] sArray = sVector.Split(',');

        // store as a Vector3
        Vector3 result = new Vector3(
            float.Parse(sArray[0]),
            float.Parse(sArray[1]),
            float.Parse(sArray[2]));

        return result;
    }
    /*
    public static string GetLocalIPAddress()
    {
        var host = Dns.GetHostEntry(Dns.GetHostName());
        foreach (var ip in host.AddressList)
        {
            if (ip.AddressFamily == AddressFamily.InterNetwork)
            {
                return ip.ToString();
            }
        }
        throw new System.Exception("No network adapters with an IPv4 address in the system!");
    }
    */
}

I tried changing the host number because unity gives an error: SocketException: Only one usage of each socket address (protocol/network address/port) is normally permitted.

I feel like with one object its working fine, but i want one script that controls 14 objects, based on an ID later on. So doesnt make sense to split everything in 14 scripts.