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From: Gregory Ewing <greg.ewing@canterbury.ac.nz>
Newsgroups: comp.lang.python
Subject: Re: Late-binding of function defaults (was Re: What is a function parameter =[] for?)
Date: Fri, 27 Nov 2015 10:20:57 +1300
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Xref: csiph.com comp.lang.python:99599

Marko Rauhamaa wrote:
> What I'm saying is that Python does not prevent mutable keys but tries
> to do that with lists and tuples.
> 
> I think Python should stop trying.

Do you volunteer to answer all the posts from beginners
complaining that "the dict type is broken" because they
used a list as a key and then mutated it?

-- 
Greg