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Date: Tue, 20 Jan 2015 11:21:37 +1100
Subject: Re: Concerning Dictionaries and += in Python 2.x
From: Chris Angelico <rosuav@gmail.com>
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Xref: csiph.com comp.lang.python:84037

On Tue, Jan 20, 2015 at 11:12 AM, Luke Tomaneng <luketomaneng@gmail.com> wr=
ote:
> def compute_bill(food):
>     total =3D 0
>     for item in food:
>         if stock[item] > 0:
>             total +=3D prices[item]
>             stock[item] =3D stock[item] - 1
>             return total
> Whenever I run this script, "4" is returned. It does not seem to matter w=
hat in in the list the script is run on. I have tried this on the Codecadem=
y interpreter/emulator (I'm not sure which they use) and the repl.it interp=
reter, but for the same result. If anyone could find the glitch in my code,=
 please let me know. Thanks!
>

In Python, indentation determines block structure. Have another look
at this function, and see if you can figure out where the problem is;
hint: try printing something out every time you claim a piece of
stock.

ChrisA