[Python-Dev] Tuples vs. lists

Aahz Maruch aahz@rahul.net
Mon, 4 Feb 2002 06:40:20 -0800 (PST)

Guido van Rossum wrote:
> Aahz:
>> It's a constant.  The BCD module is Binary Coded Decimal; instances are
>> intended to be as immutable as strings and numbers (well, it *is* a
>> number type).  Modifying an instance is guaranteed to produce a new
>> instance.  To a large extent, I guess I feel that if a class is intended
>> to be immutable, each of its underlying data attributes should also be
>> immutable.
> Or you could assign it to a private variable.

And in private e-mail, Guido writes:
> I hate to continue harping on this tiny item in public, but what woud
> you do if you needed a constant dictionary?

<grin> <throw up hands>  All right, I guess it's time for me to just
follow the Python motto: "There's only one way, and that way is Guido's."
                      --- Aahz (@pobox.com)

Hugs and backrubs -- I break Rule 6       <*>       http://www.rahul.net/aahz/
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