reference or pointer to some object?
jeff at ccvcorp.com
Thu Jan 13 13:03:55 EST 2005
Antoon Pardon wrote:
> Op 2005-01-12, Jeff Shannon schreef <jeff at ccvcorp.com>:
>>It's also rather less necessary to use references in Python than it is
>>in C et. al.
> You use nothing but references in Python, that is the reason why
> if you assign a mutable to a new name and modify the object through
> either name, you see the change through both names.
Perhaps it would've been better for me to say that the sorts of
problems that are solved by (pointers and) references in C/C++ can be
better solved in other ways in Python...
One can take the position that every variable in Python is a
reference; the semantics work out the same. But I find it clearer to
view the Python model as conceptually distinct from the "classic"
value/reference model. Re-using the old terms is likely to lead to
making mistakes based on inapplicable presumptions.
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