bool() — Advanced Playground

Converts a value to a Boolean (True or False)

Python Playground

# bool() - implementing the protocol
class Custom:
    def __bool__(self):
        return "custom result"

obj = Custom()
print(bool(obj))

Output

Click "Run" to execute your code

Understanding the dunder methods that bool() calls helps you customize behavior for your own classes.

Try modifying the code above to explore different behaviors. Can you extend the example to handle a new use case?