References that don't keep alive.
Skip to solutionKEEP THE
hardDSA
What is a weak reference in Python?
729 views
01
Understand the problem
weakrefmemory
02
Attempt it yourself
Sketch your approach before reading the solution — that's what interviews test.
Nudge consolestandby
Stuck? Beam a request up — the console returns a conceptual nudge that guides your logic without spoiling the implementation.
03
Study the solution
A weakref points to an object without incrementing its refcount, so it doesn't keep the object alive; great for caches/observers that shouldn't prevent collection.
Solution ready — 2 min read
Classified // press E to declassify
04
Run the code
PYA weakref goes dead when the strong ref is gone
05
Join the discussion
Discussion (0)
Sign in to join the discussion.
No responses yet. Be the first to share what you think.
Transmission complete // awaiting log
KEEP THE
STREAK ALIVE.
Dossier 98 of 120 decoded in the Python track. One more won't hurt.