[Tutor] home_finance.py
Eric Walker
sli1que at yahoo.com
Wed Sep 26 11:01:59 CEST 2007
I think you need to check to see if the remaining amount is less than the payment amount.
Eric...
Christopher Spears <cspears2002 at yahoo.com> wrote: I'm working on a problem in Chapter 5 of Core Python
Programming(2nd Edition). I am supposed to write a
script that take an opening balance and a monthly
payment from the user. The script then displays the
balance and payments like so:
Enter opening balance: 100
Enter monthly payment: 16.13
Amount Remaining
Pymnt# Paid Balance
0 0.00 100.00
1 16.13 83.87
2 16.13 67.74
3 16.13 51.61
4 16.13 35.48
5 16.13 19.35
6 16.13 3.22
7 3.22 0.00
Here is what I have written so far:
#!/usr/bin/env python
balance = float(raw_input("Enter opening balance: "))
payment = float(raw_input("Enter monthly payment: "))
print "\tAmount\tRemaining"
print "Pymnt#\tPaid\tBalance"
payment_num = 0
print "%d\t%.2f\t%.2f" % (payment_num,0,balance)
while balance >= 0:
payment_num = payment_num + 1
if balance > 0:
balance = balance - payment
print "%d\t%.2f\t%.2f" %
(payment_num,payment,balance)
else:
payment = balance
balance = balance - payment
print "%d\t%.2f\t%.2f" %
(payment_num,payment,balance)
This is what my script displays:
Enter opening balance: 100
Enter monthly payment: 16.13
Amount Remaining
Pymnt# Paid Balance
0 0.00 100.00
1 16.13 83.87
2 16.13 67.74
3 16.13 51.61
4 16.13 35.48
5 16.13 19.35
6 16.13 3.22
7 16.13 -12.91
I'm not sure how to solve this problem. Apparently,
trying to catch the remaining balance when it becomes
negative doesn't work!
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