Exam PCAP-31-03 topic 1 question 59 discussion

C. obj_c.get() == 2: False in strict Python, but likely the intended second answer testing a common misconception. obj_c is an instance of C. obj_c.get() uses B's get method (return self._VarA). self._VarA (for obj_c) resolves to C._VarA, which is 3. So, obj_c.get() returns 3. 3 == 2 is False. Common misconception: Thinking get would access B._VarA (which is 2), leading to True. This is the likely reason it's a choice given the prompt to select two.

A. True (hasattr(B, 'get') is true because get is defined in class B). B. False (obj_b is an instance of B, which is a superclass of C). C. False (obj_c.get() returns 3 because it finds _VarA in its own class C). D. False (C._VarA is explicitly defined as 3, not 2).

A & C is correct answer

A & C is correct answer

A and C are correct.

To list all attributes: print(dir(A)), a function get is at the end

Correct: A, C print("A.", hasattr(B, 'get')) #True print("B.", isinstance(obj_b,C)) #False print("C.", obj_c.get(), obj_c.get() == 2) #True 2 print("D.", C._C__VarA, C._C__VarA == 2) #False, 3

sorry , only A is correct

A and B are corrects