sum() — Python Technical Interview Questions & Answers

sum()

sum()

  • sum() is built into Python. You do not import it. Freshers only need one honest call and the printed result — not a long definition.
  • sum() — output: 60.
  • Wrong type often raises TypeError. Empty values matter for bool/all/any. Don’t mix sum up with a similar name (sorted vs sort, int vs float).

Technical Interview Tip: Call sum() once and say what prints.

Code Examples for sum()

Example

# sum()
print(sum([10, 20, 30]))

sum() — output: 60.

How to Explain sum() to an Interviewer

Explain sum() as if you are teaching a junior — definition, then one tiny script.

sum() is built-in — no import. One call + exact output.

What does the example print, and why?

sum() — output: 60

What mistake do freshers make with sum()?

Wrong type → TypeError.