ATM machine program using python programming language

ATM machine program without using loops:

correct_passkey='4455'
balance=0
entered_passkey=input('welcome client, please enter passkey:')

if entered_passkey != correct_passkey:
    print('wrong passkey!')
else:
    choice=int(input('welcome,\npress 1 to withdraw money.\npress 2 to transfer money\npress 3 to deposit money\npress 4 to display current balance:'))
    if choice==1:
            if balance<=0:
             print('you do not have money!')
            else:
             amount=int(input('enter the amount money you want to withdraw:'))
             if amount>100000:
                print('you are not allowed to withdraw more than 100000')
             elif amount>=balance:
                 print("withdrawing is processing...")
                 balance=balance-amount
                 print("withdraw done!.")
    elif choice==2:
            money = int(input('enter money amount:'))
            if money <balance:
                print('not enough money in your balance to transfer.')
            else:
                c=int(input('enter account number you want to transfer to:'))
                count=-1
                print("transfering is processing...")
                balance=balance-money
                print("transfering done!.")
    elif choice==3:
            money=int(input('enter money amount:'))
            balance=balance + money
            print("deposit process done.")
    elif choice==4:
        print('Your balance is ', balance)
    else:
        print("invalid entry!")

with inifinite loops using while loop, and with lists(arrays):

accounts_numbers=[23410324,132432,9865665,596900,4654680,76432,86785342,5678888,734533,456045456]
accounts_passkeys=[2344,5433,7523,9806,4560,6454,5343,6565,3455,5677]
accounts_balances=[0,0,0,0,0,0,0,0,0,0]

while True:
 account_num=int(input('welcome, to atm, enter your account number:'))
 found_account=False
 counter=-1
 for a in accounts_numbers:
    counter=counter+1
    if a==account_num:
        found_account=True
        break

 if found_account == False:
    print('account number does not exists')
 else:
    passkey_counter=0 #this counter to count the number of login try times
    while True:
        passkey_counter=passkey_counter+1
        if passkey_counter>=4:
            print("this is the 4th try to signin, try again after 1 hour")
            break
        passkey=int(input('enter your passkey'))
        if passkey!=accounts_passkeys[counter]:
            print("wrong passkey, try again .")
        else:
           while True:   
            choice=int(input('1.withdraw money.\n2.transfer money to another account.\n3.deposit money.\n4.display balance.\n5.signout the atm'))
            if choice==1:
                money=int(input('enter money amount:'))
                if money>accounts_balances[counter]:
                    print('not enough money in your balance')
                else:
                    print("withdrawing is processing...")
                    accounts_balances[counter]=accounts_balances[counter]-money
                    print("withdraw done!. your new balance is ",accounts_balances[counter])
            elif choice==2:
                money = int(input('enter money amount:'))
                if money > accounts_balances[counter]:
                    print('not enough money in your balance')
                else:
                    c=int(input('enter account number you want to transfer to:'))
                    count=-1
                    for a in accounts_numbers:
                        count=count+1
                        if a==c:
                            accounts_balances[counter] = accounts_balances[counter] - money
                            accounts_balances[count]=accounts_balances[count]+money
                            print("transferring ",money," to account number/",c," is done successfuly.")
                            break
            elif choice==3:
                money=int(input('enter money amount to deposit:'))
                accounts_balances[counter] = accounts_balances[counter] + money
                print("doposit money is done. your new balance is ",accounts_balances[counter])
            elif choice==4:
                print('your balance =',accounts_balances[counter])
            elif choice==5:
                print("you will signout now. good bye")
                break
            else:
                print("invalid entry")
        break

ATM machine program using modules

we created a module named : accounts, and then imported it in the main program:

the accounts.py file:

################################################
#this is accounts.py
################################################
accounts_numbers=[23410324,132432,865665,595400,4654680,87657432,86785342,5678888,734533,456045456]
accounts_passkeys=[2344,5433,7523,9806,4560,6454,5343,6565,3455,5677]
accounts_balances=[0,0,0,0,0,0,0,0,0,0]

current_user_index=-1

def withdraw(money):
    if money > accounts_balances[current_user_index]:
        print('not enough money in your balance')
    else:
        accounts_balances[current_user_index] = accounts_balances[current_user_index] - money
        print('withdrawal done succefully')
def deposit(money):
    accounts_balances[current_user_index] =accounts_balances[current_user_index] + money
    print('deposit done succefully')

def transfer_money(money):
    if money > accounts_balances[current_user_index]:
        print('not enough money in your balance')
    else:
        c = int(input('enter account number you want to transfer to:'))
        count = -1
        for a in accounts_numbers:
            count = count + 1
            if a == c:
                accounts_balances[current_user_index] = accounts_balances[current_user_index] - money
                accounts_balances[count] = accounts_balances[count] + money
                print('money transfered succefully')
                break;

#############################################
##end of accounts.py file
############################################################

the main.py file:

#####################################
#this is main.py file
###################################
import accounts

account_num=int(input('welcome, to atm, enter your account number:'))
account_index=-1
counter=-1
for a in accounts.accounts_numbers:
    counter=counter+1
    if a==account_num:
        accounts.current_user_index=a
        break;

if accounts.current_user_index==-1:
    print('account number does not exists')
else:
    passkey=int(input('enter your passkey'))
    if passkey==accounts.accounts_passkeys[counter]:
     while True:
        choice=int(input('1.withdraw money.\n2.transfer money to another account.\n3.deposit money.\n4.display balance.\n5.exit'))
        if choice==1:
            accounts.withdraw(int(input('enter money amount:')))
        elif choice==2:
            money = int(input('enter money amount:'))
            if money > accounts.accounts_balances[counter]:
                print('not enough money in your balance')
            else:
                c=int(input('enter account number you want to transfer to:'))
                count=-1
                for a in accounts.accounts_numbers:
                    count=count+1
                    if a==c:
                        accounts.accounts_balances[counter] = accounts.accounts_balances[counter] - money
                        accounts.accounts_balances[count]=accounts.accounts_balances[count]+money
                        print('money transfered succefully')
                        break;
        elif choice==3:
            money=int(input('inter money amount:'))
            accounts.accounts_balances[counter] = accounts.accounts_balances[counter] + money
            print('deposit done succefully')
        elif choice==4:
            print('your balance equal',accounts.accounts_balances[counter])
        else:
            break