Re: learning python. learning defining functions . need help

[MRAB]

On 2016-07-22 16:41, D'Arcy J.M. Cain wrote:
On Fri, 22 Jul 2016 08:21:17 -0700
justin walters <walters.justi...@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.

If you're checking that it's a dict, there's no need to check whether 
it's None, because None isn't a dict either!
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