Easy Decorators Question 36 of 228

What does functools.wraps do?

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

PICTURE THIS: STACK VS QUEUE

StackLIFOlast in, first out

QueueFIFOfirst in, first out

Simple meaning

wraps copies the wrapped function's metadata such as __name__ and __doc__ onto the wrapper.

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
wraps copies the wrapped
function's metadata such as __name__ and __doc__ onto the wrapper.
2
Without it, stack traces
and Django's URL reversing by view name can look wrong.
3
Always use @functools.wraps(func) inside
decorator implementations.
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

“Without it, stack traces and Django's URL reversing by view name can look wrong.”

Break into beats

WithoutitstacktracesandDjango's

Speaking order

2987408337471632900

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

Key takeaway

wraps copies the wrapped function's metadata such as __name__ and __doc__ onto the wrapper. Without it, stack traces and Django's URL reversing by view name can look wrong.