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From: Ian Kelly <ian.g.kelly@gmail.com>
Date: Thu, 4 Oct 2012 18:59:03 -0600
Subject: Re: sum function
To: Python <python-list@python.org>
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On Thu, Oct 4, 2012 at 6:40 PM, Mike <mike20007@gmail.com> wrote:
> Traceback (most recent call last):
>   File "test.py", line 16, in <module>
>     total = sum(float(col.value) for r in iter(next_r, None) for col in r.itervalues())
>   File "test.py", line 16, in <genexpr>
>     total = sum(float(col.value) for r in iter(next_r, None) for col in r.itervalues())
> AttributeError: 'list' object has no attribute 'itervalues'

"r.itervalues()" should have been "r[0].columns.itervalues()", I
think.  It's hard to test code against an API that you don't have. :-)