1. What will be the output of the following Python code?
'{a}{b}{a}'.format(a='hello', b='world')
a) ‘hello world’
b) ‘hello’ ‘world’ ‘hello’
c) ‘helloworldhello’
d) ‘hello’ ‘hello’ ‘world’
Explanation: The code shown above prints the values substituted for a, b, a, in the same order. This operation is performed using the format function. Hence the output of the code is: ‘helloworldhello’.
2. What will be the output of the following Python code?
'The {} side {1} {2}'.format('bright', 'of', 'life')
a) Error
b) ‘The bright side of life’
c) ‘The {bright} side {of} {life}’
d) No output
Explanation: The code shown above results in an error. This is because we have switched from automatic field numbering to manual field numbering, that is, from {} to {1}. Hence this code results in an error.
3. What will be the output of the following Python code?
'{0:f}, {1:2f}, {2:05.2f}'.format(1.23456, 1.23456, 1.23456)
a) Error
b) ‘1.234560, 1.22345, 1.23’
c) No output
d) ‘1.234560, 1.234560, 01.23’
Explanation: In the code shown above, various formatting options are displayed using the format option. Hence the output of this code is: ‘1.234560, 1.234560, 01.23’
4. What will be the output of the following Python code?
'%.2f%s' % (1.2345, 99)
a) ‘1.2345’, ‘99’
b) ‘1.2399’
c) ‘1.234599’
d) 1.23, 99
Explanation: In this code, we must notice that since multiple values haven been given, they should be enclosed in a tuple. Since the formatting format is %.2f, the value 1.2345 is reduced to two decimal places. Hence the output of the code shown above: ‘1.2399’.
5. What will be the output of the following Python code?
'%s' %((1.23,),)
a) ‘(1.23,)’
b) 1.23,
c) (,1.23)
d) ‘1.23’
Explanation: The formatting expression accepts either a single substitution value, or a tuple of one or more items. Since single item can be given either by itself or within the tuple, a tuple to be formatted must be provided as a tested tuple. Hence the output of the code is: >>> ‘%s’ %((1.23,),)
6. What will be the output of the following Python code?
i = 0
while i < 5:
print(i)
i += 1
if i == 3:
break
else:
print(0)
a) 0 1 2 0
b) 0 1 2
c) error
d) none of the mentioned
Explanation: The else part is not executed if control breaks out of the loop.
7. What will be the output of the following Python code?
i = 0
while i < 3:
print(i)
i += 1
else:
print(0)
a) 0 1 2 3 0
b) 0 1 2 0
c) 0 1 2
d) error
Explanation: The else part is executed when the condition in the while statement is false.
8. What will be the output of the following Python code?
x = "abcdef"
while i in x:
print(i, end=" ")
a) a b c d e f
b) abcdef
c) i i i i i i …
d) error
Explanation: NameError, i is not defined.
9. What will be the output of the following Python code?
x = "abcdef"
i = "i"
while i in x:
print(i, end=" ")
a) no output
b) i i i i i i …
c) a b c d e f
d) abcdef
Explanation: “i” is not in “abcdef”.
10. What will be the output of the following Python code?
x = "abcdef"
i = "a"
while i in x:
print(i, end = " ")
a) no output
b) i i i i i i …
c) a a a a a a …
d) a b c d e f
Explanation: As the value of i or x isn’t changing, the condition will always evaluate to True.