PP_Week7_Batch1

Choose the correct option with respect to Python.

• Both tuples and lists are immutable.

• Tuples are immutable while lists are mutable.

• Both tuples and lists are mutable.

• Tuples are mutable while lists are immutable.

 

What will be the output of below Python code?

tuple1=(5,1,7,6,2)

tuple1.pop(2)

print(tuple1)

• (5,1,6,2)

• (5,1,7,6)

• (5,1,7,6,2)

• Error

What will be the output of below Python code?

tupl=("annie","hena","sid")

print(tupl[-3:0])

• ("annie")

• ()

• None

• Error as slicing is not possible in tuple.

What will be the output of below Python code?

tupl=([2,3],"abc",0,9)

tupl[0][1]=1

print(tupl)

• ([2,3],"abc",0,9)

• ([1,3],"abc",0,9)

• ([2,1],"abc",0,9)

• Error

Which of the following are true of Python lists?

• A list may contain any type of object except another list

• A given object may appear in a list more than once

• All elements in a list must be of the same type

• These represent the same list:

  ['a', 'b', 'c']

  ['c', 'a', 'b']

• There is no conceptual limit to the size of a list

List a is defined as follows:

a = [1, 2, 3, 4, 5]

Select all of the following statements that remove the middle element 3 from a so that it equals [1, 2, 4, 5]:

• a[2:3] = []

• a[2] = []

• a.remove(3)

• a[2:2] = []

• del a[2]

Consider this assignment statement:

a, b, c = (1, 2, 3, 4, 5, 6, 7, 8, 9)[1::3]

Following execution of this statement, what is the value of b:

• 5

• 4

• 3

• 6

• 7

A Python dictionary is called

• pytn

• dict

• dicn

• def

Suppose x is defined as follows:

x = [

'a',

'b',

{

'foo': 1,

'bar':

{

'x' : 10,

'y' : 20,

'z' : 30

},

'baz': 3

},

'c',

'd'

]

What is the expression involving x that accesses the value 30?

• x[2]["bar"]["z"]

• x[2]["bar"]

• x["bar"]["z"]

• x[2]["bar"]["z"][3]

What would be the output of the following code snippet?

a_dict = {'color': 'blue', 'fruit': 'apple', 'pet': 'dog'}

d_items = a_dict.items()

print(d_items)

• ('color', 'blue'), ('fruit', 'apple'), ('pet', 'dog')

• dict_items([('color'), ('fruit'), ('pet')])

• [('color', 'blue'), ('fruit', 'apple'), ('pet', 'dog')]

• dict_items([('color', 'blue'), ('fruit', 'apple'), ('pet', 'dog')])