Python

The Python Language is a simple start to programming. It was the first time I had used it and I found it vey interesting. There were certain commands and functions that took a little longer to get my head around and below I have posted my first assignment to give you an idea of how a python programme looks and whats actually included in the programme.

This is for a simple ATM programme:

# -*- coding: utf-8 -*-
def ATM_Service():
    Pin = '2120'
    Overdraft = 250
    Balance = 1000
    while True:
        pin_input = raw_input('Insert Pin Now: ')
        if Pin == pin_input:
            print("PIN Confirmed")
            print "Please Select an option from the menu below"
            break
        print("Invalid PIN try again")
    while True:
        menu_input = raw_input('\n 1.Balance \n 2.Withdraw \n 3.Deposit \n 4.Exit\n Enter option: ')
        if ('1' == menu_input):
            print "\n Balance remaining:" + str(Balance)
            print "\n Overdraft remaining:" + str(Overdraft)
            print "\n Total Balance Remaining:"
            print int(Balance)+int(Overdraft)
            raw_input("\n Press any key to return to menu...") 
        elif ('2' == menu_input):
            print 'Withdraw Selected'
            while True:
                try:
                    option = int(raw_input("\n Enter Withdrawal Amount(Pounds): "))  
                except ValueError:
                    print "\n Oops invalid entry...try again"
                    continue
                if option > 0:
                    if option > Balance + Overdraft:
                        print "\n That exceeds your limit...please enter valid amount"
                        continue
                    else:
                        Balance = Balance - option
                else:
                    print "\n Invalid Withdrawal entry...please enter valid amount"
                    continue
                break
                   
            print "\n You have withdrawn(£):  " + str(option)
            print "\n Balance is now: "
            print int(Balance)+int(Overdraft)
            raw_input("\n Press any key to return to menu...")
           
        elif ('3' == menu_input):
            print 'Deposit Selected'
            while True:
                try:
                    option = int(raw_input("Enter Deposit Amount(Pounds): "))
                except ValueError:
                    print "Oops invalid entry...try again"
                    continue
                if option < 1:
                    print "Invalid Deposit entry...try again"
                    continue
                else:
                    Balance = Balance + option
                break
                   
            print "You have deposited(£):  " + str(option)
            print "Balance is now: "
            print int(Balance)+int(Overdraft)
            raw_input("Press any key to return to menu...")
           
        elif ('4' == menu_input):
            raw_input("Until We Meet Again Compadre")
            break
                    
ATM_Service()