ELIF chains

301.9 Selection

Selection — Note 2 of 4

Multi-branch decision making.

What you need to know

elif (else if) lets you check multiple conditions in sequence. Python checks each one top-to-bottom and runs the first branch that is True, then skips the rest.

What to know

elif adds extra conditions after if
Checked top-to-bottom — first True wins
else at the end catches everything not matched
Order matters — put the most specific condition first

Code examples

ELIF chain

python

score = int(input("Score: "))
if score >= 90:
    print("A")
elif score >= 70:
    print("B")
elif score >= 50:
    print("C")
else:
    print("Fail")

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Specification notes for programming are in Paper 2.