Python · Theory

round()

Theory

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round() is built into Python. You do not import it. Freshers only need one honest call and the printed result — not a long definition.

round() — output — 4 then 3.14.

Wrong type often raises TypeError. Empty values matter for bool/all/any. Don’t mix round up with a similar name (sorted vs sort, int vs float).

Exam tip

Call round() once and say what prints.

# round()
print(round(3.6))
print(round(3.14159, 2))

round() — output: 4 then 3.14.