On 2014-08-25 18:55, Seymore4Head wrote:
import sys
import math
def row1(number):
return str(number).rjust(3)
def row2(number):
return str(format(number) ',.2f'))
That line has to many ')'.
The result of 'format' is a string, so there's no need to use 'str'.
def row3(number):
return '${:.2f}'.format(number)
def row4(number):
return '$' + str(format(math.floor(number * 100) / 100, ',.2f'))
Here, again, the result of 'format' is a string, so there's no need to
use 'str'.
count = 0
payment = 0
borrowed = 100
rate = 6
term = 12
interest=borrowed*rate*.01 #(*1)
balance = borrowed + interest
print ("Loan calculator")
print ("")
print ("Amount borrowed: ", borrowed)
print ("Interest rate: ", rate)
print ("Term: (months)", term)
print ("")
print ("Amount borrowed:" , borrowed)
print ("Total interest paid:" , interest)
print ("")
print ("")
print (" Amount Remaining")
print ("Pymt# Paid Balance")
print ("----- ------ ----------")
while count <=term:
print ("{} {} {}".format(row1(count),
row2(payment),row3(balance)))
payment = (borrowed + interest)/term
balance = balance - payment
count = count + 1
I changed the program just a little to give myself a little practice
with number formats. The main thing I wanted to do was make the
decimal points line up. The problem I am having is with the print
(count)(payment)(balance) line.
I added 4 functions row1-4 for some practice in formatting.
Row4 is the old makeitmoney function. I am not using it, but I am
keeping it in.
row2 is row4 with:
(math.floor(number * 100) / 100, ',.2f')
taken out leaving ',.2f'
For some reason, it is not working. If I try to use row2 I get this
error:
http://i.imgur.com/FgeF9c9.jpg
Most of my learning is trial and error. Mostly error. To try to get
the decimals to line up, I changed row3 from'${:.2f}' to '${:6.2f}'.
That makes the decimals line up, but it adds another problem.
http://i.imgur.com/1KsP3ga.jpg
If you change "borrowed" from 100 to 1000 the fix gets broken again.
So I changed the '${:6.2f}' to '${:8.2f}'
http://i.imgur.com/74C5sAx.jpg
That works until you change "borrowed" to 1000000
http://i.imgur.com/fCuwOXv.jpg
Is there a way to fix the decimal point to line up without having to
limit the whole digits?
BTW I changed row3 back to '${:6.2f}' and used 1 000 000 000 for
"borrowed" It doesn't lose any digits in the whole number column, but
it does skew the formatting.
http://i.imgur.com/Hjpkts4.jpg
There are 2 steps:
1. Format the amount as a string. This is best done in a function.
2. Right-justify the string. This could be done as part of the format
for the row.
--
https://mail.python.org/mailman/listinfo/python-list
