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Date: Fri, 7 Mar 2014 22:11:13 +1100
Subject: Re: Tuples and immutability
From: Chris Angelico <rosuav@gmail.com>
Cc: "python-list@python.org" <python-list@python.org>
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Xref: csiph.com comp.lang.python:67989

On Fri, Mar 7, 2014 at 8:33 PM, Duncan Booth
<duncan.booth@invalid.invalid> wrote:
> Is there any reason why tuples need to throw an exception on assigning to
> the element if the old value and new value are the same object?

It'd be easy enough to implement your own tuple subclass that behaves
that way. Try it! See how many situations it actually helps.

ChrisA