Easy Decorators Question 34 of 228

What is a decorator in Python?

Python & Django · Speak this in 60–90 seconds · Faridabad & Delhi NCR

PICTURE THIS: A REST CALL

ClientGET /users/1

ServerFind row

JSON back200 OK

Simple meaning

A decorator is a callable that takes a function and returns a new callable, usually wrapping extra behavior.

WHY — Decorators instead of guessing?

Why interviewers care about Decorators:

Decorators questions separate people

who only read docs from people who shipped.

Keep it short, concrete,

and tied to Python work.

Stay structured

Name the idea, why it exists, then one short example.

Close cleanly

End with when you use it and one common pitfall.

STEPS — What happens step by step?

Before you speak the answer, walk the interviewer through these steps:

1
A decorator is a
callable that takes a function and returns a new callable, usually wrapping extra behavior.
2
The @decorator syntax applies
it at definition time.
3
Django uses decorators heavily
for auth, HTTP methods, and caching.
4
Give an example
One tiny concrete case you can say aloud.
5
Common mistake
What juniors usually get wrong.
6
Close
When you pick this over the alternative.

EXAMPLE — See it in action

Here's a short line you can speak, broken into clear beats:

Say this line

“The @decorator syntax applies it at definition time.”

Break into beats

Thedecoratorsyntaxappliesitat

Speaking order

2987408337471632900

Note: Adapt this scaffold to your own project — keep it under 60–90 seconds.

Key takeaway

A decorator is a callable that takes a function and returns a new callable, usually wrapping extra behavior. The @decorator syntax applies it at definition time.