--- title: "Weak references are Awesome in Python" url: https://daily.dev/posts/weak-references-are-awesome-in-python-77amyifnr source_url: https://www.youtube.com/watch?v=UXGxMnu7qig type: video:youtube source: "Indently" published: 2026-06-06T12:54:02.830Z updated: 2026-06-06T12:54:19.103Z tags: ["python"] reading_time: 10 upvotes: 2 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Weak references are Awesome in Python **[Indently](https://daily.dev/sources/indently)** · 10 min read · 2 upvotes · 0 comments ## Summary Python's weakref module lets you hold references to objects without preventing garbage collection. The tutorial covers the core problem (strong references in caches keeping objects alive indefinitely), then walks through practical solutions: weakref.ref for non-owning references, proxy objects as transparent alternatives, WeakValueDictionary for self-cleaning caches, WeakKeyDictionary for attaching metadata to objects whose lifecycle you don't control, and WeakSet for tracking active objects. Key caveats include which built-in types don't support weak references (lists, dicts, integers, strings, tuples) and the need to grab a strong reference before using WeakValueDictionary entries. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [A Strong Reference to Weak References in Python](https://daily.dev/posts/a-strong-reference-to-weak-references-in-python-zwaigwtuw) · Confessions of a Code Addict · 0 upvotes · 0 comments - [Python: store extra data for objects in a WeakKeyDictionary](https://daily.dev/posts/python-store-extra-data-for-objects-in-a-weakkeydictionary-i6dtgtava) · Adam Johnson · 0 upvotes · 0 comments --- Tags: [#python](https://daily.dev/tags/python) [View this post on daily.dev](https://daily.dev/posts/weak-references-are-awesome-in-python-77amyifnr)