I had worked on a open source project called 'safecache' on the similar note. As others has already commented, @lru_cache does not play well with mutable data s

I had worked on a open source project called 'safecache' on the similar note. As others has already commented, @lru_cache does not play well with mutable data structures. So my implementation handles for both immutable and mutable data structures as well as multi-threaded operations. https://github.com/Verizon/safecache https://github.com/Verizon/safecache