Python Question Paper on “Lists”.
1. What will be the output of the following Python code?
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>>>m = [[x, x + 1, x + 2] for x in range(0, 3)]
a) [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
b) [[0, 1, 2], [1, 2, 3], [2, 3, 4]]
c) [1, 2, 3, 4, 5, 6, 7, 8, 9]
d) [0, 1, 2, 1, 2, 3, 2, 3, 4]
Answer: b
Clarification: Execute in the shell to verify.
2. How many elements are in m?
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m = [[x, y] for x in range(0, 4) for y in range(0, 4)]
a) 8
b) 12
c) 16
d) 32
Answer: c
Clarification: Execute in the shell to verify.
3. What will be the output of the following Python code?
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values = [[3, 4, 5, 1], [33, 6, 1, 2]]
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v = values[0][0]
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for row in range(0, len(values)):
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for column in range(0, len(values[row])):
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if v < values[row][column]:
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v = values[row][column]
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print(v)
a) 3
b) 5
c) 6
d) 33
Answer: d
Clarification: Execute in the shell to verify.
4. What will be the output of the following Python code?
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values = [[3, 4, 5, 1], [33, 6, 1, 2]]
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v = values[0][0]
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for lst in values:
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for element in lst:
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if v > element:
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v = element -
print(v)
a) 1
b) 3
c) 5
d) 6
Answer: a
Clarification: Execute in the shell to verify.
5. What will be the output of the following Python code?
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values = [[3, 4, 5, 1 ], [33, 6, 1, 2]]
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for row in values:
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row.sort()
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for element in row:
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print(element, end = " ")
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print()
a) The program prints two rows 3 4 5 1 followed by 33 6 1 2
b) The program prints on row 3 4 5 1 33 6 1 2
c) The program prints two rows 3 4 5 1 followed by 33 6 1 2
d) The program prints two rows 1 3 4 5 followed by 1 2 6 33
Answer: d
Clarification: Execute in the shell to verify.
6. What will be the output of the following Python code?
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matrix = [[1, 2, 3, 4],
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[4, 5, 6, 7],
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[8, 9, 10, 11],
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[12, 13, 14, 15]]
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for i in range(0, 4):
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print(matrix[i][1], end = " ")
a) 1 2 3 4
b) 4 5 6 7
c) 1 3 8 12
d) 2 5 9 13
Answer: d
Clarification: Execute in the shell to verify.
7. What will be the output of the following Python code?
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def m(list):
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v = list[0]
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for e in list:
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if v < e: v = e
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return v -
values = [[3, 4, 5, 1], [33, 6, 1, 2]]
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for row in values:
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print(m(row), end = " ")
a) 3 33
b) 1 1
c) 5 6
d) 5 33
Answer: d
Clarification: Execute in the shell to verify.
8. What will be the output of the following Python code?
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data = [[[1, 2], [3, 4]], [[5, 6], [7, 8]]]
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print(data[1][0][0])
a) 1
b) 2
c) 4
d) 5
Answer: d
Clarification: Execute in the shell to verify.
9. What will be the output of the following Python code?
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data = [[[1, 2], [3, 4]], [[5, 6], [7, 8]]]
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def ttt(m):
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v = m[0][0]
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for row in m:
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for element in row:
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if v < element: v = element
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return v -
print(ttt(data[0]))
a) 1
b) 2
c) 4
d) 5
Answer: c
Clarification: Execute in the shell to verify.
10. What will be the output of the following Python code?
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points = [[1, 2], [3, 1.5], [0.5, 0.5]]
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points.sort()
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print(points)
a) [[1, 2], [3, 1.5], [0.5, 0.5]]
b) [[3, 1.5], [1, 2], [0.5, 0.5]]
c) [[0.5, 0.5], [1, 2], [3, 1.5]]
d) [[0.5, 0.5], [3, 1.5], [1, 2]]
Answer: c
Clarification: Execute in the shell to verify.