Development - Beginner, exercise 18

Text

Write down a small function in Python that takes in input two boolean values and implements the xor operation, which returns True only when one of the input boolean is True and the other is False, and returns False otherwise.

Solution

# Test case for the function
def test_xor(b1, b2, expected):
    result = xor(b1, b2)
    if expected == result:
        return True
    else:
        return False


# Code of the function
def xor(b1, b2):
    return (b1 and not b2) or (not b1 and b2)


# Tests
print(test_xor(True, True, False))
print(test_xor(True, False, True))
print(test_xor(False, True, True))
print(test_xor(False, False, False))

Additional material

The runnable Python file is available online.