So what's happening here?

From	Paul Appleby <pap@nowhere.invalid>
Newsgroups	comp.lang.python
Subject	So what's happening here?
Date	2015-06-05 12:46 +0000
Organization	Datemas.de http://www.news.datemas.de
Message-ID	<pan.2015.06.05.12.46.21@nowhere.invalid> (permalink)

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I saw somewhere on the net that you can copy a list with slicing. So 
what's happening when I try it with a numpy array?

>>> a = numpy.array([1,2,3])
>>> b = a[:]
>>> a is b
False
>>> b[1] = 9
>>> a
array([1, 9, 3])

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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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