bin() — Python Technical Interview Questions & Answers

bin()

bin()

  • bin() is built into Python. You do not import it. Freshers only need one honest call and the printed result — not a long definition.
  • bin() — output: 0b1010. Binary text for 10.
  • Wrong type often raises TypeError. Empty values matter for bool/all/any. Don’t mix bin up with a similar name (sorted vs sort, int vs float).

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

Code Examples for bin()

Example

# bin()
print(bin(10))

bin() — output: 0b1010. Binary text for 10.

How to Explain bin() to an Interviewer

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

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

What does the example print, and why?

bin() — output: 0b1010

What mistake do freshers make with bin()?

Wrong type → TypeError.