Replace custom cached_property with functools.cached_property

[cdrini]

Work towards #11479 . This is now built-in to python and can be replaced with functools.cached_property . It was only used in one spot.

Technical

Added in python 3.8, it has the same semantics as our version, namely that it is store for the life time of the instance:

The cached_property decorator only runs on lookups and only when an attribute of the same name doesn’t exist. When it does run, the cached_property writes to the attribute with the same name. Subsequent attribute reads and writes take precedence over the cached_property method and it works like a normal attribute.

Testing

Screenshot

Stakeholders

[Copilot]

Pull Request Overview

This PR modernizes the codebase by replacing a custom cached_property implementation with Python's standard library functools.cached_property (available since Python 3.8).

• Removes the custom cached_property decorator function (22 lines of code)
• Updates the single usage in MemcacheCache.memcache to use functools.cached_property
• Removes cached_property from the module's __all__ exports

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.