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From: Chris Angelico <rosuav@gmail.com>
Newsgroups: comp.lang.python
Subject: Re: how to get names of attributes
Date: Wed, 30 Dec 2015 23:50:03 +1100
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On Wed, Dec 30, 2015 at 11:40 PM, Charles T. Smith
<cts.private.yahoo@gmail.com> wrote:
> Oh!
>
> Although the referenced doc says:
>
>   "For compatibility reasons, classes are still old-style by default."
>
> is it true that dictionaries are by default always new-style objects?
>
>   (PDB)c6 = { "abc" : 123, "def" : 456}
>
>   (PDB)isinstance (c6, dict)
>   True
>
>   (PDB)isinstance (c6, object)
>   True

I believe that's true, yes. The meaning of "by default" there is that
"class X: pass" will make an old-style class. All built-in types are
now new-style classes.

ChrisA