Assertions
assert checks a condition and raises AssertionError if it is false. Used for debugging and sanity checks.
Python
Beginner
3 min read
Assertions
Example
def divide(a, b):
assert b != 0, "Denominator must not be zero"
return a / b
print(divide(10, 2)) # 5.0
print(divide(10, 0)) # AssertionError Pro Tip
Assertions are disabled when Python runs with -O (optimized) flag.