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Re: Multi-dimensional list initialization

Subject Re: Multi-dimensional list initialization
From Demian Brecht <demianbrecht@gmail.com>
Date 2012-11-05 07:01 -0800
References <A399B195-7ED3-42D6-A54F-299FE66EBFAE@gmail.com> <CAMZYqRRA=i=_A_eLY4pFZgh5RbZKKhY8=5pJPE=pYgsW2XjP7A@mail.gmail.com>
Newsgroups comp.lang.python
Message-ID <mailman.3291.1352127722.27098.python-list@python.org> (permalink)

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On 2012-11-04, at 11:07 PM, Chris Rebert <clp2@rebertia.com> wrote:

> However, unlike a list object (as in your latter example), the object
> `None` is completely immutable (and what's more, a singleton value),
> so you just-so-happen *not to be able to* run into the same problem of
> mutating an object (assignment to an index of a list constitutes
> mutation of that list) that is referenced in multiple places, for you
> cannot mutate None in the first place!

Thanks for clearing that up Chris (and the link to the FAQ). I had thought about that after going to bed ("D'oh.. None is immutable.. *That's* gotta be why").

Demian Brecht
@demianbrecht
http://demianbrecht.github.com



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Re: Multi-dimensional list initialization Demian Brecht <demianbrecht@gmail.com> - 2012-11-05 07:01 -0800

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