[issue19859] functools.lru_cache keeps objects alive forever

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

Weak references make no sense in most cases when arguments disappear just after function call. For the self argument of a method it makes more sense. Perhaps lru_cache can return not a function, but a descriptor. This will allow implement special processing of first argument.

Or new decorator lru_cache_method should be added.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue19859>
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