enumerate()
enumerate() is built into Python. You do not import it. Freshers only need one honest call and the printed result — not a long definition.
enumerate() — output — 1 Asha then 2 Ravi. Index + value together.
Wrong type often raises TypeError. Empty values matter for bool/all/any. Don’t mix enumerate up with a similar name (sorted vs sort, int vs float).
Exam tip
Call enumerate() once and say what prints.