pythonLogic errorHard

Divide-by-zero check comes too late

Time: 0:00

BugFind the bug and fix the code

What it should do

safe_ratio(a, b) returns True when a / b is more than 1. If b is 0 it returns False instead of crashing. Example: safe_ratio(4, 2) → True, safe_ratio(1, 0) → False.

What happens instead

safe_ratio(1, 0) crashes: ZeroDivisionError: division by zero.

def safe_ratio(a, b):
    if a / b > 1 and b != 0:
        return True
    return False

Test a custom input to verify an edge case (e.g. empty lists, negative numbers, duplicates).

⏱️0:00

Hints

🏆 0 hints = Flawless Solve

Think & Test Cooldown

2:00 remaining

Take a moment to read the bug symptom and trace the code with Run & Check before unlocking Hint 1.

Hint 2

Unlocks after Hint 1

Hint 3

Unlocks after Hint 2

This bug belongs to the logic errors pattern

The wrong operator, an inverted condition, a formula the right way round but backwards.

Learn the logic errors pattern Step through your own code

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pythonLogic errorHard

Divide-by-zero check comes too late

Time: 0:00

BugFind the bug and fix the code

What it should do

safe_ratio(a, b) returns True when a / b is more than 1. If b is 0 it returns False instead of crashing. Example: safe_ratio(4, 2) → True, safe_ratio(1, 0) → False.

What happens instead

safe_ratio(1, 0) crashes: ZeroDivisionError: division by zero.

def safe_ratio(a, b):
    if a / b > 1 and b != 0:
        return True
    return False

Test a custom input to verify an edge case (e.g. empty lists, negative numbers, duplicates).

⏱️0:00

Hints

🏆 0 hints = Flawless Solve

Think & Test Cooldown

2:00 remaining

Take a moment to read the bug symptom and trace the code with Run & Check before unlocking Hint 1.

Hint 2

Unlocks after Hint 1

Hint 3

Unlocks after Hint 2

This bug belongs to the logic errors pattern

The wrong operator, an inverted condition, a formula the right way round but backwards.

Learn the logic errors pattern Step through your own code

Divide-by-zero check comes too late

What it should do

What happens instead

More logic errors to practise

Seen this error in your own code?

Divide-by-zero check comes too late

What it should do

What happens instead

More logic errors to practise

Seen this error in your own code?