Answer:
import sys
#account balance
account_balance = float(500.25)
##prints current account balance
def printbalance():
print('Your current balance: %2g'% account_balance)
#for deposits
def deposit():
#user inputs amount to deposit
deposit_amount = float(input())
#sum of current balance plus deposit
balance = account_balance + deposit_amount
# prints customer deposit amount and balance afterwards
print('Deposit was $%.2f, current balance is $%2g' %(deposit_amount,
balance))
#for withdrawals
def withdraw():
#user inputs amount to withdraw
withdraw_amount = float(input())
#message to display if user attempts to withdraw more than they have
if(withdraw_amount > account_balance):
print('$%.2f is greater than your account balance of $%.2f\n' %
(withdraw_amount, account_balance))
else:
#current balance minus withdrawal amount
balance = account_balance - withdraw_amount
# prints customer withdrawal amount and balance afterwards
print('Withdrawal amount was $%.2f, current balance is $%.2f' %
(withdraw_amount, balance))
#system prompt asking the user what they would like to do
userchoice = input ('What would you like to do? D for Deposit, W for
Withdraw, B for Balance\n')
if (userchoice == 'D'): #deposit
print('How much would you like to deposit today?')
deposit()
elif userchoice == 'W': #withdraw
print ('How much would you like to withdraw today?')
elif userchoice == 'B': #balance
printbalance()
else:
print('Thank you for banking with us.')
sys.exit()
