[Tutor] When is = a copy and when is it an alias
Denis Heidtmann
denis.heidtmann at gmail.com
Mon Jan 27 07:16:25 CET 2014
Running python 2.7 in linux
Below are two extremes. Can I get some guidance on this?
Thanks,
-Denis H
>>> a=zeros((2,3),dtype=int)
>>> b=a
>>> a[:,0]=[1,2]
>>> a
array([[1, 0, 0],
[2, 0, 0]])
>>> b
array([[1, 0, 0],
[2, 0, 0]])
>>> a=2
>>> a
2
>>> b
array([[1, 0, 0],
[2, 0, 0]])
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