[Tutor] How do i show discount?

[Steven D'Aprano]

ADRIAN KELLY wrote:
> how would i show the discount in main? 

Look at your shop() function:

> def shop(total_spend):
>     min_spend=25
>     discount_amount=150
>     discount=0.05
>     if total_spend >= min_spend and total_spend > discount_amount:
>         checkout=total_spend-(total_spend*discount)
>         discount=total_spend*discount
>     else:
>         checkout = total_spend
>         discount = 0
>     return checkout

It calculates the discount, and then does nothing with it except throw 
the answer away. So the first thing you need is to return the checkout 
and the discount:


return (checkout, discount)


Now look at main():

> def main():
>     spend = input('Enter the amount you spent: ')
>     while spend<25:
>         print "Error, min spend is �25 in this shop!"
>         spend = input('Enter the amount you spent: ')
>     else:
>         total = shop(spend)
>         print 'Your bill comes to',total,"\n","your discount was",discount

It collects the total spent, but needs to collect both total and discount:

total, discount = shop(spend)


-- 
Steven