isspace() — Python Technical Interview Questions & Answers

isspace()

isspace()

  • isspace is a string helper. You call it on text like "Asha" or "banana". It gives a new string (or a number/True-False). The old string does not change unless you assign the result back.
  • isspace() — output: True.
  • Fresher trap: writing s.isspace() and expecting s to update. Strings are immutable. Write s = s.isspace(...) if you need the new value (when it returns a string).

Technical Interview Tip: Call isspace on one real word and say what prints.

Code Examples for isspace()

Example

# isspace()
print("   ".isspace())

isspace() — output: True.

How to Explain isspace() to an Interviewer

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

isspace works on str. isspace usually returns a new string.

What does the example print, and why?

isspace() — output: True

What mistake do freshers make with isspace()?

isspace does not change the original string in place.