locals() — Python Technical Interview Questions & Answers

locals()

locals()

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

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

Code Examples for locals()

Example

# locals()
def f():
    x = 1
    print("x" in locals())
f()

Output: True. locals() inside f sees x.

How to Explain locals() to an Interviewer

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

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

What does the example print, and why?

True

What mistake do freshers make with locals()?

Wrong type → TypeError.