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Date: Sun, 31 Aug 2014 19:16:14 +1000
Subject: Re: I have tried and errored a reasonable amount of times
From: Chris Angelico <rosuav@gmail.com>
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On Sun, Aug 31, 2014 at 6:37 PM, Steven D'Aprano
<steve+comp.lang.python@pearwood.info> wrote:
> - Use print() to see the intermediate results:
>
>     a = e[0].isupper
>     print(e[0], a, a == False, a == True)

And I'll add to this: *Copy and paste* the original code to craft this
output statement. I recently was trying to figure out a problem, and
retyped to create the output statements... and I didn't make the same
typo, so it worked fine. For some reason, my eye didn't notice the
error, and I couldn't understand why the intermediate results were
correct and the overall result was wrong. (And no, it wasn't the kind
of 'wrong' that results in a nice tidy exception. It just resulted in
wrong results.)

ChrisA