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Python Basic Object-Oriented Python Welcome to OOP Methods

Pedro Leitao
Pedro Leitao
1,436 Points

"Return False" x " = False"

Why in this case you define the boolean value with "return False"?

def use_gas(self):
    self.gas -= 50
    if self.gas <= 0:
        return False
    else:
        return True

While in this case you use "self.is_moving = False"

def stop(self):
    if self.is_moving:
        print('The car has stopped.')
        self.is_moving = False
    else:
        print('The car has already stopped.')

Thank You!

1 Answer

Steven Parker
Steven Parker
218,487 Points

These function are doing different kinds of things.

Notice that for the use_gas function, the value is being passed back to the caller, so it's part of a return statement.

But for stop, no value is being returned. Instead, the internal value is_moving is being tested; and also changed if needed.