encode() — Python Technical Interview Questions & Answers

encode()

encode()

  • encode 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.
  • encode() — output: b'A'.
  • Fresher trap: writing s.encode() and expecting s to update. Strings are immutable. Write s = s.encode(...) if you need the new value (when it returns a string).

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

Code Examples for encode()

Example

# encode()
print("A".encode("utf-8"))

encode() — output: b'A'.

How to Explain encode() to an Interviewer

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

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

What does the example print, and why?

encode() — output: b'A'

What mistake do freshers make with encode()?

encode does not change the original string in place.