while(True): print('-'*50) Menu.RegMenu() ch = int(input('Enter Your Choice : ')) if(ch == 1): try: reg.register() except ValueError: print('Please Enter Valid Input(Number)!!! ') elif(ch == 2): for i in range(0,3): try: loginStatus = reg.login() while(loginStatus == True): print('-'*50) Menu.StudMenu() ch = int(input('Enter Your choice : ')) if(ch == 1): try: op.select() except ValueError: print('Please Enter Valid Input(Number)!!! ') if(ch == 2): try: op.insert() except ValueError: print('Please Enter Valid Input(Number)!!! ') if(ch == 3): try: op.update() except ValueError: