Lesser known parts of Python standard library

Re:Lesser known parts of Python standard library – Trickster... by d0mine on Thursday September 05, 2024 @02:31AM (#41454120)

It may be more explicit: OrderedDict has move_to_end() which may be useful e.g., for implementing lru_cache-like functionality (like deque.rotate but with arbitrary keys).

[ Parent | on HN ]

Re:Lesser known parts of Python standard library – Trickster... by masklinn on Thursday September 05, 2024 @05:18AM (#41454937)

OTOH that’s a lot less useful now that functools.lru_cache exists: it’s more specialised so it’s lighter, more efficient, and thread-safe. So unless you have extended flexibility requirements around your LRU, OD loses a lot there.

And if you’re using a FIFO cache, threading a regular dict through a separate fifo (whether linked list or deque) is more efficient in my experience of implementing both S3 and Sieve.

[ Parent | on HN ]