Serhiy Storchaka <storchaka+cpyt...@gmail.com> added the comment:
I agree that composition is methodologically more correct than inheritance for implementing a variant of lru_cache(). But if you need lru_cache() why not use lru_cache() from the stdlib? I think that instead of showing a poor version of the lru_cache() decorator, it is better to show a tool which can be used for LRU caching. The key and the value should be evaluated externally. In other word, class LRU with methods __contains__(), __getitem__() and __setitem__() (or get() and set()). It should use composition. Alternatively we can add a comment that it is just an example, and some methods (like pop()) can not work. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue44782> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
