ClientTCP-Maths.py

from socket import *
import sys
serverName = 'localhost'	#Change with Server Ip if running on different Host
serverPort = 12000
clientSocket = socket(AF_INET, SOCK_STREAM)
try: # tries to connect to the serverin
    print('Trying to connect to the Server...')
    clientSocket.connect((serverName, serverPort))
except:#in case the server is not running / responding
    print("Wating for the Server to respond...")
    i=1
    while i==1:#This loop will run unless the client is connected to the server (after the server is available)
        try:
            clientSocket.connect((serverName, serverPort))
            i=2
        except:
            pass
print('Connected to: ',clientSocket.getsockname())
while 1:
    num1 = input("1st number: ")#User will input 1st number
    num2 = input("2st number: ")#User will input 2nd number
    list1 = ["+", "-", "*", "/"]#A lookup list for the Validation Loop
    while 1: #Validation loop so that the user can inout only a single operator
        op = input("Choose Operation: (Addition = +, Subtraction = -, Mulitplication = *, Division = /) >> ")#choose between +, -, *, / signs
        if op in list1:
            break;
        else:
            print('Choose again')
    o = num1+op+num2 #concatinating the inputs in such a way that it gets recognized by the server
    print(o) #Just showing the user what they input
    clientSocket.send(o.encode())#Client will send the inputs to the server
    response = clientSocket.recv(2048)#Fetch the response from the server
    print('From Server: ', response.decode())
    while 1:#Validation loop for conitnuing or terminating the client
        inp = input('Press 1 to Continue. Press 2 to Exit ')
        if inp=='2':
            print("Disconnecting...")
            clientSocket.close()
            print("Disconnected")
            sys.exit(0)
        elif inp=='1':
            break;
        else:
            print('Choose Again')