Memoizing methods considered harmful

[joyful-giraffe]

@kenahoo

This behavior has been observed before, for example in this SO thread: caching - Python functools lru_cache with instance methods: release object - Stack Overflow .

@DavidCEllis

Making a version which doesn’t make any assumptions about slots or name clashes, similar to the current @cache design would require hashability for the dictionary key and weakref to prevent the reference as a dictionary key from keeping the object around.

Here is a new answer to the SO question above that fixes this issue: caching - Python functools lru_cache with instance methods: release object - Stack Overflow.