Python-Quizzes | Python Dictionary Quiz | Question 2

Question 2:Find the output of the following program:

D = {1 : 1, 2 : '2', '1' : 1, '2' : 3}
D['1'] = 2
print(D[D[D[str(D[1])]]])

(A) 2
(B) 3
(C) ‘2’
(D) KeyError

Answer: (B)
Explanation: Simple key-value pair is used recursively, D[1] = 1, str(1) = ‘1’. So, D[str(D[1])] = D[‘1’] = 2, D[2] = ‘2’ and D[‘2’] = 3.
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