Server.py

import socket
import select
connections = []
buffer = 1024
port = 9876
servsock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
#servsock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
servsock.bind(("172.20.200.220", port))
servsock.listen(99)
connections.append(servsock)
print("Chat server has started on port: {}".format(port))
global addr
def broadcast(sock, msg, addr=None):
    for s in connections:
        print(addr)
        if s != sock and s != servsock:
            try:
                s.send("{}: {}".format(addr, msg).encode())
            except:
                s.close()
                connections.remove(s)
while True:
    readsock, writesock, errsock = select.select(connections, [], [])
    for sock in readsock:
        if sock == servsock:
            sockfd, addr = servsock.accept()
            print("Sockfd",sockfd)
            connections.append(sockfd)
            print("Client {} connected".format(addr))
            broadcast(sockfd, "Client {} has connected".format(addr))
        else:
            try:
                data = sock.recv(buffer)
                if data:
                    print(data.decode())
                    sock.send(data)
                    broadcast(sock, data.decode(), addr)
            except:
                broadcast(sock, "Client {} is offline".format(addr))
                print("Client {} is offline".format(addr))
                sock.close()
                connections.remove(sock)
                continue
servsock.close()