questions regarding assignement and copy

[Sven Schreiber]

David Cournapeau schrieb:
> Sven Schreiber wrote:
>> Yes it's intended; as far as I understand the python/numpy syntax, <+>
>> is an operator, and that triggers assignment by copy (even if you do
>> something trivial as bar = +foo, you get a copy, if I'm not mistaken),
>>   
> So basically, whenever you have
> 
> foo = expr
> 
> with expr is a numpy expression containing foo, you trigger a copy ?
> 

David, I would tend to confirm your conjecture, but given its generality
  I should not pretend to really know all about that stuff.

It could be, for example, that the user may specify inside the
expression that she wants a view, not a copy, But I don't know if that's
really possible.

Anybody else available to help out?
-sven

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