What's the best way to implement a Python cache for performance optimization? or How does Python cach

Honestly, caching is a rabbit hole. `lru_cache` is the easiest, but if you’re dealing with dynamic data, it’s not enough.

Consider `cachetools.TTLCache` for auto-expiring entries.

Or, if you’re fancy, `memcached` or `redis` for distributed stuff.

Big gotcha: Caching isn’t free—monitor memory usage!