[Python-Dev] sys.intern should work on bytes

[Jesus Cea]

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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?

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