Conditional expression

Learn single-line conditionals with x if cond else y.

A conditional expression (or ternary) writes if/else in one line:

age = 20
status = "Adult" if age >= 18 else "Child"
print(status)

The form is: value_if_true if condition else value_if_false. This is handy for simple assignments; complex logic prefers normal if/else.

Using conditional expressions

The conditional expression is especially useful for variable assignment:

score = 75
result = "Passed" if score >= 50 else "Failed"
print(result)

The same logic can be written with if/else but this is shorter. Never nest conditional expressions; it gets unreadable.

Assign score = 75. Assign result = "Passed" if score >= 50 else "Failed". Print print(result).

Show example solution

score = 75
result = "Passed" if score >= 50 else "Failed"
print(result)

Complete the conditional expression

status = "Adult" ____ age >= 18 else "Child"

Show answer

status = "Adult" if age >= 18 else "Child"