This set of Python Technical Questions & Answers focuses on “While and For Loops – 6”.
1. What will be the output of the following Python code?
for i in range(10): if i == 5: break else: print(i) else: print("Here")
a) 0 1 2 3 4 Here
b) 0 1 2 3 4 5 Here
c) 0 1 2 3 4
d) 1 2 3 4 5
View Answer
Explanation: The else part is executed if control doesn’t break out of the loop.
2. What will be the output of the following Python code?
for i in range(5): if i == 5: break else: print(i) else: print("Here")
a) 0 1 2 3 4 Here
b) 0 1 2 3 4 5 Here
c) 0 1 2 3 4
d) 1 2 3 4 5
View Answer
Explanation: The else part is executed if control doesn’t break out of the loop.
3. What will be the output of the following Python code?
x = (i for i in range(3)) for i in x: print(i)
a) 0 1 2
b) error
c) 0 1 2 0 1 2
d) none of the mentioned
View Answer
Explanation: The first statement creates a generator object.
4. What will be the output of the following Python code?
x = (i for i in range(3)) for i in x: print(i) for i in x: print(i)
a) 0 1 2
b) error
c) 0 1 2 0 1 2
d) none of the mentioned
View Answer
Explanation: We can loop over a generator object only once.
5. What will be the output of the following Python code?
string = "my name is x" for i in string: print (i, end=", ")
a) m, y, , n, a, m, e, , i, s, , x,
b) m, y, , n, a, m, e, , i, s, , x
c) my, name, is, x,
d) error
View Answer
Explanation: Variable i takes the value of one character at a time.
6. What will be the output of the following Python code?
string = "my name is x" for i in string.split(): print (i, end=", ")
a) m, y, , n, a, m, e, , i, s, , x,
b) m, y, , n, a, m, e, , i, s, , x
c) my, name, is, x,
d) error
View Answer
Explanation: Variable i takes the value of one word at a time.
7. What will be the output of the following Python code snippet?
a = [0, 1, 2, 3] for a[-1] in a: print(a[-1])
a) 0 1 2 3
b) 0 1 2 2
c) 3 3 3 3
d) error
View Answer
Explanation: The value of a[-1] changes in each iteration.
8. What will be the output of the following Python code snippet?
a = [0, 1, 2, 3] for a[0] in a: print(a[0])
a) 0 1 2 3
b) 0 1 2 2
c) 3 3 3 3
d) error
View Answer
Explanation: The value of a[0] changes in each iteration. Since the first value that it takes is itself, there is no visible error in the current example.
9. What will be the output of the following Python code snippet?
a = [0, 1, 2, 3] i = -2 for i not in a: print(i) i += 1
a) -2 -1
b) 0
c) error
d) none of the mentioned
View Answer
Explanation: SyntaxError, not in isn’t allowed in for loops.
10. What will be the output of the following Python code snippet?
string = "my name is x" for i in ' '.join(string.split()): print (i, end=", ")
a) m, y, , n, a, m, e, , i, s, , x,
b) m, y, , n, a, m, e, , i, s, , x
c) my, name, is, x,
d) error
View Answer
Explanation: Variable i takes the value of one character at a time.
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