#0069

Safe Divide With Exceptions

EasyPython12 min10 XP

Problem

Return a / b. If b is zero, return None. Do not catch every possible exception.

Why This Matters

Production code should handle expected failures without hiding unrelated bugs.

Function Signature

def safe_divide(a, b):

Examples

Example 1

Inputsafe_divide(10, 2)

Output5.0

Normal division still works.

Example 2

Inputsafe_divide(10, 0)

OutputNone

Division by zero is the expected failure.

Constraints

Catch ZeroDivisionError only.
Return None for division by zero.
Let unrelated type errors surface.

CodePython

def safe_divide(a, b):
    """
    Input example: safe_divide(10, 2)
    Return: 5.0
    Return the value from the function so the tests can compare it. Do not print unless the prompt asks.
    """
    # write your code here
    return None

def safe_divide(a, b):
    """
    Input example: safe_divide(10, 2)
    Return: 5.0
    Return the value from the function so the tests can compare it. Do not print unless the prompt asks.
    """
    # write your code here
    return None

Visible browser tests run here when available.

Testcases2 visible / 3 hidden categories

Normal division

Input10, 2

Expected5.0

The function should not always return None.

Zero denominator

Input10, 0

ExpectedNone

Expected error returns fallback.

Hidden Test Categories

negative denominatorfloat divisionunrelated type error should not be swallowed