Python · OOP: Properties, Methods & Data Classes

What is printed? ``` class A: @classmethod def who(cls): return cls.name class B(A): pass print(A.who(), B.who()) ```

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More in OOP: Properties, Methods & Data Classes

What does this print? ``` class C: @property def area(self): return self.w * self.h c = C(); c.w, c.h = 3, 4 print(c.area) print(c.area()) ```

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A class has @property def x with only a getter. What happens at obj.x = 5?

What does this print? ``` class A: @staticmethod def add(a, b): return a + b print(A.add(2, 3)) print(A().add(2, 3)) ```

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self / cls / nothing: which implicit first parameter does each receive — an instance method, a @classmethod, and a @staticmethod?

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What is printed? ``` class A: @classmethod def who(cls): return cls.__name__ class B(A): pass print(A.who(), B.who()) ```

More in OOP: Properties, Methods & Data Classes

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What is printed? ``` class A: @classmethod def who(cls): return cls.name class B(A): pass print(A.who(), B.who()) ```