Ready to boost your Python skills? We’ve brought you the 30 most critical Python programming questions on List, Tuple, and Dictionary – the foundation of every Python application. Gain a deep understanding of these data types and take your coding to the next level.
Python Programming Q & A – List, Tuple, and Dictionary
By the end of this tutorial, confidently use List, Tuple, and Dictionary data types to supercharge your Python projects. Let’s dive in and unlock your Python potential!
We hope you are ready to start this 30-question questionnaire. However, we have also curated the best 100 Python interview questions on various Python programming topics. Please save this list of 100 questions and check it out after you finish the 30 questions on List, Tuple, and Dictionary.
10 Objective questions and answers on the list
Before getting started with the questions on Python lists, check out a short definition of a list in Python. It will help you remember about it quickly.
A list, in Python, stores a sequence of objects in a defined order. Python lists allow indexing and iterating through its elements. Lists are mutable objects that you can modify after creation.
Q-1. What will be the output of the following Python code?
a=[1,2,3,4,5,6,7,8,9] print(a[::2])
A. [1,2]
B. [8,9]
C. [1,3,5,7,9]
D. [1,2,3]
Show Answer
C
Q-2. The code below manipulates a Python list using the slicing operator. What will be the output?
a=[1,2,3,4,5,6,7,8,9] a[::2]=10,20,30,40,50,60 print(a)
A. ValueError: Attempt to assign a sequence of size 6 to an extended slice of size 5
B. [10, 2, 20, 4, 30, 6, 40, 8, 50, 60]
C. [1, 2, 10, 20, 30, 40, 50, 60]
D. [1, 10, 3, 20, 5, 30, 7, 40, 9, 50, 60]
Show Answer
A
Q-3. What will be the output of the following code snippet?
a=[1,2,3,4,5] print(a[3:0:-1])
A. Syntax error
B. [4, 3, 2]
C. [4, 3]
D. [4, 3, 2, 1]
Show Answer
B
Q-4. What will the Python function in the code below do? Choose the right option.
def f(value, values):
v = 1
values[0] = 44
t = 3
v = [1, 2, 3]
f(t, v)
print(t, v[0])A. 1 44
B. 3 1
C. 3 44
D. 1 1
Show Answer
C
Q-5. What is the correct command to shuffle the given Python list?
fruit=['apple', 'banana', 'papaya', 'cherry']
A. fruit.shuffle()
B. shuffle(fruit)
C. random.shuffle(fruit)
D. random.shuffleList(fruit)
Show Answer
C
Q-6. The function below is iterating over a nested Python list. What will it return?
data = [[[1, 2], [3, 4]], [[5, 6], [7, 8]]]
def fun(m):
v = m[0][0]
for row in m:
for element in row:
if v < element: v = element
return v
print(fun(data[0]))A. 1
B. 2
C. 3
D. 4
E. 5
F. 6
Show Answer
D
Q-7. The below code is iterating over a nested Python list. What will be the output?
arr = [[1, 2, 3, 4],
[4, 5, 6, 7],
[8, 9, 10, 11],
[12, 13, 14, 15]]
for i in range(0, 4):
print(arr[i].pop())A. 1 2 3 4
B. 1 4 8 12
C. 4 7 11 15
D. 12,13,14,15
Show Answer
C
Q-8. What will be the output of the following Python code?
def f(i, values = []):
values.append(i)
print (values)
return values
f(1)
f(2)
f(3)A. [1] [2] [3]
B. [1, 2, 3]
C. [1] [1, 2] [1, 2, 3]
D. 1 2 3
Show Answer
C
Q-9. The code below uses a Python list and iterates using the range() function. What will be the output?
arr = [1, 2, 3, 4, 5, 6]
for i in range(1, 6):
arr[i - 1] = arr[i]
for i in range(0, 6):
print(arr[i], end = " ")A. 1 2 3 4 5 6
B. 2 3 4 5 6 1
C. 1 1 2 3 4 5
D. 2 3 4 5 6 6
Show Answer
D
Q-10. What will be the output of the following code snippet?
fruit_list1 = ['Apple', 'Berry', 'Cherry', 'Papaya']
fruit_list2 = fruit_list1
fruit_list3 = fruit_list1[:]
fruit_list2[0] = 'Guava'
fruit_list3[1] = 'Kiwi'
sum = 0
for ls in (fruit_list1, fruit_list2, fruit_list3):
if ls[0] == 'Guava':
sum += 1
if ls[1] == 'Kiwi':
sum += 20
print (sum)A. 22
B. 21
C. 0
D. 43
Show Answer
A
Do you know how to traverse multiple lists in parallel? Learn Python zip function to iterate lists in parallel.
Out of the 30 questions on List, Tuple, and Dictionary, you have completed the 10 questions on the list. Next, if you wish, continue with the 10 Python programming exercises/questions on tuples and 10 on the Python dictionary.
Let’s take up 10 questions on Python tuples!
Before you dive in to solve the questions below, quickly have a bird-view on the concept of a tuple in Python.
A tuple is similar to a list, but it’s immutable. Another semantic difference between a list and a tuple is that “Tuples are heterogeneous data structures whereas the list is a homogeneous sequence.”.
Q-1. What will be the output of the following Python code?
init_tuple = () print (init_tuple.__len__())
A. None
B. 1
C. 0
D. Exception
Show Answer
C
Q-2. What will be the output of the following Python coding snippet?
init_tuple_a = 'a', 'b'
init_tuple_b = ('a', 'b')
print (init_tuple_a == init_tuple_b)A. 0
B. 1
C. False
D. True
Show Answer
D
Q-3. What will be the output of the following code snippet?
init_tuple_a = '1', '2'
init_tuple_b = ('3', '4')
print (init_tuple_a + init_tuple_b)A. (1, 2, 3, 4)
B. (‘1’, ‘2’, ‘3’, ‘4’)
C. [‘1’, ‘2’, ‘3’, ‘4’]
D. None
Show Answer
B
Q-4. What will be the output of the following code snippet?
init_tuple_a = 1, 2 init_tuple_b = (3, 4) [print(sum(x)) for x in [init_tuple_a + init_tuple_b]]
A. Nothing gets printed.
B. 4
C. 10
D. TypeError: unsupported operand type
Show Answer
C
Q-5. What will be the output of the following code snippet?
init_tuple = [(0, 1), (1, 2), (2, 3)] result = sum(n for _, n in init_tuple) print(result)
A. 3
B. 6
C. 9
D. Nothing gets printed.
Show Answer
B
Q-6. Which of the following statements given below is/are true about a Python tuple?
A. Tuples have structure, and lists have an order.
B. Tuples are homogeneous, and lists are heterogeneous.
C. Tuples are immutable, and lists are mutable.
D. All of them.
Show Answer
A & C
Q-7. What will be the output of the following code snippet?
l = [1, 2, 3]
init_tuple = ('Python',) * (l.__len__() - l[::-1][0])
print(init_tuple)A. ()
B. (‘Python’)
C. (‘Python’, ‘Python’)
D. Runtime Exception.
Show Answer
A
Q-8. What will be the output of the following code using a Python tuple?
init_tuple = ('Python') * 3
print(type(init_tuple))A. <class ‘tuple’>
B. <class ‘str’>
C. <class ‘list’>
D. <class ‘function’>
Show Answer
B
Q-9. What will be the output of the following code snippet?
init_tuple = (1,) * 3 init_tuple[0] = 2 print(init_tuple)
A. (1, 1, 1)
B. (2, 2, 2)
C. (2, 1, 1)
D. TypeError: ‘tuple’ object does not support item assignment
Show Answer
D
Q-10. What will be the output of the following Python code?
init_tuple = ((1, 2),) * 7 print(len(init_tuple[3:8]))
A. Exception
B. 5
C. 4
D. None
Show Answer
C
Finally, you have completed 20 Python programming questions on lists and tuples. Don’t skip the last 10 questions related to the dictionary data type.
Let’s not miss 10 more questions on dictionaries.
Here is a short description of a dictionary in Python to let you understand it quickly.
Dictionaries in Python are collections of elements in the form of key-value pairs. They are unordered by default and use hash tables for indexing. Search operations are generally faster in a dictionary as keys are hashed, allowing for efficient lookups.
Q-1. What is the output of the below Python code?
a = {(1,2):1,(2,3):2}
print(a[1,2])A. Key Error
B. 1
C. {(2,3):2}
D. {(1,2):1}
Show Answer
B
Q-2. What will be the output of the following Python coding snippet?
a = {'a':1,'b':2,'c':3}
print (a['a','b'])A. Key Error
B. [1,2]
C. {‘a’:1,’b’:2}
D. (1,2)
Show Answer
A
Q-3. The code below has a Python function writing to a dictionary. What will it print in the end?
fruit = {}
def addone(index):
if index in fruit:
fruit[index] += 1
else:
fruit[index] = 1
addone('Apple')
addone('Banana')
addone('apple')
print (len(fruit))A. 1
B. 2
C. 3
D. 4
Show Answer
C
Q-4. What will be the output of the following Python coding snippet?
arr = {}
arr[1] = 1
arr['1'] = 2
arr[1] += 1
sum = 0
for k in arr:
sum += arr[k]
print (sum)A. 1
B. 2
C. 3
D. 4
Show Answer
D
Q-5. How will the Python dictionary in the below code behave? Choose the right answer.
my_dict = {}
my_dict[1] = 1
my_dict['1'] = 2
my_dict[1.0] = 4
sum = 0
for k in my_dict:
sum += my_dict[k]
print (sum)A. 7
B. Syntax error
C. 3
D. 6
Show Answer
D
Q-6. What will be the output of the following code snippet?
my_dict = {}
my_dict[(1,2,4)] = 8
my_dict[(4,2,1)] = 10
my_dict[(1,2)] = 12
sum = 0
for k in my_dict:
sum += my_dict[k]
print (sum)
print(my_dict)A. Syntax error
B. 30
{(1, 2): 12, (4, 2, 1): 10, (1, 2, 4): 8}
C. 47
{(1, 2): 12, (4, 2, 1): 10, (1, 2, 4): 8}
D. 30
{[1, 2]: 12, [4, 2, 1]: 10, [1, 2, 4]: 8}
Show Answer
B
Q-7. What will the following Python dictionary code print in its result?
box = {}
jars = {}
crates = {}
box['biscuit'] = 1
box['cake'] = 3
jars['jam'] = 4
crates['box'] = box
crates['jars'] = jars
print (len(crates[box]))A. 1
B. 3
C. 4
D. Type Error
Show Answer
D
Q-8. What will be the output of the Python code given below?
dict = {'c': 97, 'a': 96, 'b': 98}
for _ in sorted(dict):
print (dict[_])A. 96 98 97
B. 96 97 98
C. 98 97 96
D. NameError
Show Answer
A
Q-9. Will the ID of a copied Python dictionary object change? Check your answer.
rec = {"Name" : "Python", "Age":"20"}
r = rec.copy()
print(id(r) == id(rec))A. True
B. False
C. 0
D. 1
Show Answer
B
Q-10. What will be the result of the below Python code?
rec = {"Name" : "Python Programmer", "Age":"20", "Addr" : "NJ", "Country" : "USA"}
id1 = id(rec)
del rec
rec = {"Name" : "Python Programmer", "Age":"20", "Addr" : "NJ", "Country" : "USA"}
id2 = id(rec)
print(id1 == id2)A. True
B. False
C. 1
D. Exception
Show Answer
A
Summary – Python Programming Questions [List, Tuple, and Dictionary]
We tried to address some of the key Python programming constructs in this post with the help of 30 quick questions on Lists, Tuples, and Dictionaries. We hope you would’ve enjoyed them all.
In the next post, we’ll discuss another interesting Python programming topic. Till then, enjoy reading and keep learning.
Finally, to keep our site free, we need your support. If you found this tutorial helpful, please share it on Linkedin or Facebook.
Enjoy coding,
TechBeamers.
