Benjamin Peterson benjamin at python.org
Fri Sep 20 15:57:26 CEST 2013

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2013/9/20 Jesus Cea <jcea at jcea.es>:
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> On 20/09/13 15:44, Antoine Pitrou wrote:
>
>> Yes. The main difference is that sys.intern() will remove the
>> interned strings when every external reference vanishes. It
>> requires either weakref'ability (which both str and bytes lack) or
>> special cooperation from the object destructor (which is why
>> sys.intern() is restricted to str instead of working with arbitrary
>> objects).
>
> Great comment. Thanks.
>
> Why str/bytes doesn't support weakrefs, beside memory use?

Is increased memory use for every str/bytes object not a good enough reason?

-- 
Regards,
Benjamin

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