atm_machine_system.py

import time

print("Please insert Your CARD")

# for card processing
time.sleep(5)

password = 1234

# taking atm pin from user
pin = int(input("enter your atm pin "))

# user account balance
balance = 5000

# checking pin is valid or not
if pin == password:
    # loop will run user get free
    while True:

        # Showing  info to user

        print(""" 
			1 == balance
			2 == withdraw balance
			3 == deposit balance
			4 == exit
			"""
              )

        try:
            # taking an option from user
            option = int(input("Please enter your choice "))
        except:
            print("Please enter valid option")

        # for option 1
        if option == 1:
            print(f"Your current balance is {balance}")

        if option == 2:
            withdraw_amount = int(input("please enter withdraw_amount "))

            balance = balance - withdraw_amount

            print(f"{withdraw_amount} is debited from your account")

            print(f"your updated balance is {balance}")

        if option == 3:
            deposit_amount = int(input("please enter deposit_amount"))

            balance = balance + deposit_amount

            print(f"{deposit_amount} is credited to your account")

            print(f"your updated balance is {balance}")

        if option == 4:
            break


else:
    print("wrong pin Please try again")