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From: Ian Kelly <ian.g.kelly@gmail.com>
Date: Tue, 19 Jul 2011 12:08:06 -0600
Subject: =?UTF-8?Q?Re=3A_a_little_parsing_challenge_=E2=98=BA?=
To: Xah Lee <xahlee@gmail.com>
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On Tue, Jul 19, 2011 at 10:54 AM, Xah Lee <xahlee@gmail.com> wrote:
> On Sunday, July 17, 2011 2:48:42 AM UTC-7, Raymond Hettinger wrote:
>> On Jul 17, 12:47=A0am, Xah Lee <xah...@gmail.com> wrote:
>> > i hope you'll participate. Just post solution here. Thanks.
>>
>> http://pastebin.com/7hU20NNL
>
> just installed py3.
> there seems to be a bug.
> in this file
>
> http://xahlee.org/p/time_machine/tm-ch04.html
>
> there's a mismatched double curly quote. at position 28319.
>
> the python code above doesn't seem to spot it?

It would appear that Raymond forgot to check that the stack is empty
at the end of the check_balance function.  It's an easy enough thing
to fix.