none - output

[Christian Stockhammer]

Hello List!

I wrote a litte program that will print out the rates of a credit, but i
face some problems. Here is the code:

schuld = 100000.0

zinsfaktor = 5.0

tilgung = 20000.0

def tilgungsplan(schuld, zinsfaktor, tilgung):

print "Periode Restschuld Zinsen Tilgung"

for i in range(0,5):

zinsen = (schuld*zinsfaktor)/100

echtetilgung=tilgung-zinsen

i = i + 1

schuld = schuld - echtetilgung

print i," "," ", schuld," ", zinsen," ", echtetilgung

print tilgungsplan(schuld, zinsfaktor, tilgung)

print "Restzahlung: ", schuld





This produces this output:

Periode Restschuld Zinsen Tilgung

1 85000.0 5000.0 15000.0

2 69250.0 4250.0 15750.0

3 52712.5 3462.5 16537.5

4 35348.125 2635.625 17364.375

5 17115.53125 1767.40625 18232.59375

None

Restzahlung: 100000.0



My problem is that the "None" (I do not know how to avoid this output!) and
the value for "Restzahlung" (how much is still left to pay) is not correct!

May you help me on this on?