# import socket module
import socket
# create TCP/IP socket
s = socket.socket()
# get the according IP address
ip_address = socket.gethostbyname(socket.gethostname())
# binding ip address and port 
s.bind((ip_address, 12345))
# listen for incoming connections (server mode) with 3 connection at a time
s.listen(3)
# print your ip address
print("Server ip address:",ip_address)
while True:  
    # waiting for a connection establishment
    print ('waiting for a connection')
    connection, client_address = s.accept()
    try:
        # show connected client 
        print ('connected from', client_address)
        # sending acknowledgement to client that you are connected
        connection.send(str("Now You are connected").encode("utf-8")) 
     
        # receiving the message 
        while True:
            data = connection.recv(1024).decode("utf-8")
            if data:
                # message from client
                print(list(client_address)[0],end="")
                print (": %s" % data)
                # Enter your message to send to client
                new_data = str(input("You: ")).encode("utf-8")
                connection.send(new_data)       
    finally:
        # Close connection
        connection.close()