[Python-Dev] Add a frozendict builtin type

[Georg Brandl]

On 01.03.2012 02:45, Raymond Hettinger wrote:
> 
> On Feb 29, 2012, at 4:23 PM, Victor Stinner wrote:
> 
>> One of my colleagues implemented recently its own frozendict class
>> (which the "frozendict" name ;-)
> 
> I write new collection classes all the time.
> That doesn't mean they warrant inclusion in the library or builtins.
> There is a use case for ListenableSets and ListenableDicts -- do we
> need them in the library?  I think not.  How about case insensitive variants?
> I think not.  There are tons of recipes on ASPN and on PyPI.  
> That doesn't make them worth adding in to the core group of types.

+1.

Georg