is printing 'age' property with __str__ possible?

print_age.py

class Player(object):
    def __init__(self, age: int):
        self.age = age

    def print_age(self):
        # FIXME: can calling p.print_age() be simplified by instead using a __str__ method?
        if self.age == 0:
            return 'Unknown'
        else:
            return f'{self.age} years'

        def __str__(self, age):
            return f'something {self.age}'


if __name__ == '__main__':
    p = Player(age=30)
    print(f'{p.print_age()}')

    p = Player(age=0)
    print(f'{p.print_age()}')

    # what I would like to do is have a __str__ method handle this:
    # print(f'{p.age}')