Choose with if, elif, and else

An if statement runs its indented block when its condition is True. Use elif for another condition and else as the fallback. Python uses indentation to define each block; use four spaces consistently.

minutes = 25
if minutes >= 60:
    print("Long session")
elif minutes >= 20:
    print("Standard session")
else:
    print("Short session")

Standard session

Order matters

Python tests branches from top to bottom and runs the first matching branch. Put more specific or higher thresholds before broader ones.

score = 92
if score >= 90:
    print("Excellent")
elif score >= 50:
    print("Passed")
else:
    print("Try again")

Excellent

Why this works

An if/elif/else chain makes one choice. Python tests conditions in order and executes only the first matching branch. Indentation shows which statements belong to a branch, so move the print() line inward by four spaces. A final else catches values that matched none of the earlier conditions.

Practice

Set temperature to 18. Print "Warm" at 25 or above, "Mild" from 15 through 24, and "Cool" below 15. Change the value to test every branch.

Try another case

For score = 50 in the lesson example, which branch runs?