Python · Theory

format()

Theory

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

format() — output — 090. Width 3, pad with zeros.

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

Exam tip

Call format() once and say what prints.

# format()
print(format(90, "03d"))

format() — output: 090. Width 3, pad with zeros.