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Re: So what's happening here?

From Paul Appleby <pap@nowhere.invalid>
Newsgroups comp.lang.python
Subject Re: So what's happening here?
Date 2015-06-05 13:11 +0000
Organization Datemas.de http://www.news.datemas.de
Message-ID <pan.2015.06.05.13.11.13@nowhere.invalid> (permalink)
References <pan.2015.06.05.12.46.21@nowhere.invalid> <mailman.196.1433508938.13271.python-list@python.org>

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On Fri, 05 Jun 2015 14:55:11 +0200, Todd wrote:

> Numpy arrays are not lists, they are numpy arrays. They are two
> different data types with different behaviors.  In lists, slicing is a
> copy.  In numpy arrays, it is a view (a data structure representing some
> part of another data structure).  You need to explicitly copy the numpy
> array using the "copy" method to get a copy rather than a view:

OK, thanks.  I see. 

(I'd have thought that id(a[1]) and id(b[1]) would be the same if they 
were the same element via different "views", but the id's seem to change 
according to rules that I can't fathom.)

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Thread

So what's happening here? Paul Appleby <pap@nowhere.invalid> - 2015-06-05 12:46 +0000
  Re: So what's happening here? Fabien <fabien.maussion@gmail.com> - 2015-06-05 14:52 +0200
  Re: So what's happening here? Larry Martell <larry.martell@gmail.com> - 2015-06-05 08:55 -0400
  Re: So what's happening here? Peter Otten <__peter__@web.de> - 2015-06-05 15:09 +0200
  Re: So what's happening here? Paul Appleby <pap@nowhere.invalid> - 2015-06-05 13:11 +0000
    Re: So what's happening here? Gary Herron <gary.herron@islandtraining.com> - 2015-06-05 06:23 -0700
    Re: So what's happening here? Steven D'Aprano <steve@pearwood.info> - 2015-06-05 23:51 +1000
    Re: So what's happening here? Nobody <nobody@nowhere.invalid> - 2015-06-05 15:13 +0100

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