added code in server.py

server.py

@@ -0,0 +1,40 @@
+import socket
+import threading
+
+class Connection:
+    sock=""
+    addr=0
+
+HOST = "127.0.0.1"  # Standard loopback interface address (localhost)
+PORT = 65432  # Port to listen on (non-privileged ports are > 1023)
+clients=0
+connections=[]
+
+def send_message(conn, data):
+    for i in connections:
+        if i != conn:
+            i.sock.send(data)
+
+def handle_connection(conn):
+    with conn.sock:
+        while True:
+            data = conn.sock.recv(1024)
+            if data:
+                send_message(conn, data)
+            else:
+                print(f"Disconnected: {conn.addr}")
+                connections.remove(conn)
+                break
+
+with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
+    try:
+        s.bind((HOST, PORT))
+        while True:
+            conn=Connection()
+            s.listen()
+            conn.sock, conn.addr = s.accept()
+            connections.append(conn)
+            threading.Thread(target=handle_connection, args=(conn,)).start()
+    except KeyboardInterrupt:
+        print("Shutdown server")
+