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Thu Mar 1 01:36:15 CET 2012 · http://mail.python.org/pipermail/python-dev/2012-March/117132.html

Raymond Hettinger wrote:
> On Feb 29, 2012, at 3:52 PM, Victor Stinner wrote:
> 
>> I don't know if hardening Python is a compelling argument to add a new
>> builtin type.
> 
> It isn't.  
> 
> Builtins are for general purpose use.
> It is not something most people should use;
> however, if it is a builtin, people will be drawn 
> to frozendicts like moths to a flame.   
> The tuple-as-frozenlist anti-pattern shows
> what we're up against.

Perhaps I'm a little slow today, but I don't get this. Could you elaborate on 
tuple-as-frozenlist anti-pattern please?

i.e. what it is, why it is an anti-pattern, and examples of it in real life?

-- 
Steven

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[Python-Dev] Add a frozendict builtin type