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Re: learning python. learning defining functions . need help

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From MRAB <python@mrabarnett.plus.com>
Newsgroups comp.lang.python
Subject Re: learning python. learning defining functions . need help
Date Fri, 22 Jul 2016 19:36:56 +0100
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On 2016-07-22 16:41, D'Arcy J.M. Cain wrote:
> 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.
>
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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learning python. learning defining functions . need help sigmaphine1914@gmail.com - 2016-07-21 19:27 -0700
  Re: learning python. learning defining functions . need help Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2016-07-22 09:13 -0400
  Re: learning python. learning defining functions . need help Chris Angelico <rosuav@gmail.com> - 2016-07-22 23:24 +1000
  Re: learning python. learning defining functions . need help justin walters <walters.justin01@gmail.com> - 2016-07-22 08:21 -0700
    Re: learning python. learning defining functions . need help Steven D'Aprano <steve@pearwood.info> - 2016-07-23 11:44 +1000
  Re: learning python. learning defining functions . need help Random832 <random832@fastmail.com> - 2016-07-22 11:35 -0400
  Re: learning python. learning defining functions . need help Chris Angelico <rosuav@gmail.com> - 2016-07-23 01:35 +1000
  Re: learning python. learning defining functions . need help "D'Arcy J.M. Cain" <darcy@Vex.Net> - 2016-07-22 11:41 -0400
  Re: learning python. learning defining functions . need help MRAB <python@mrabarnett.plus.com> - 2016-07-22 19:36 +0100
  Re: learning python. learning defining functions . need help Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2016-07-22 20:04 -0400
  Re: learning python. learning defining functions . need help Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2016-07-23 11:39 -0400

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