Skip to solution
hardDSA

What is the difference between __new__ and __init__?

876 views
01

Understand the problem

Explain object creation.

newinit
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

new actually creates and returns the instance (rarely overridden, e.g. for immutables or singletons); init initializes the already-created instance. __new__ runs first; __init__ runs only if __new__ returns an instance of the class.

Solution ready — 2 min read

Classified // press E to declassify

04

Run the code

PY__new__ runs first; using it for a singleton
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 95 of 120 decoded in the Python track. One more won't hurt.

Back to track