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From: "D'Arcy J.M. Cain" <darcy@Vex.Net>
Newsgroups: comp.lang.python
Subject: Re: learning python. learning defining functions . need help
Date: Fri, 22 Jul 2016 11:41:18 -0400
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On Fri, 22 Jul 2016 08:21:17 -0700
justin walters <walters.justin01@gmail.com> wrote:
> You could also replace that line with:
> 
>     if stock is None or type(stock) != dict:

Use isinstance().  That handles classes that subclass dict as well.

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D'Arcy J.M. Cain
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