Python interview

Question 1

What is the output of print(type(5)) in Python?

Answer 1

<class ‘int’>

Question 2

True or False: Lists in Python are immutable.

Answer 2

False

Question 3

What keyword is used to define a function in Python?

Answer 3

def

Question 4

Fill in the blank: In Python, a ________ is a block of code that only runs when it is called.

Answer 4

function

Question 5

What is the purpose of the ‘self’ parameter in class methods?

Answer 5

To refer to the instance of the class

Question 6

Which of the following is a mutable data type in Python? (A) Tuple (B) List (C) String

Answer 6

B

Question 7

What does the ‘len()’ function do?

Answer 7

Returns the length of an object

Question 8

True or False: A Python dictionary can have duplicate keys.

Answer 8

False

Question 9

What method would you use to add an item to a list?

Answer 9

.append()

Question 10

What is the output of the expression 3 * ‘abc’?

Answer 10

‘abcabcabc’

Question 11

Which symbol is used for comments in Python?

Answer 11

#

Question 12

What built-in function can be used to convert a string to an integer?

Answer 12

int()

Question 13

Fill in the blank: A ________ loop is used to iterate over a sequence in Python.

Answer 13

for

Question 14

True or False: The ‘break’ statement is used to exit a loop in Python.

Answer 14

True

Question 15

What is the difference between ‘==’ and ‘is’ in Python?

Answer 15

’==’ checks for value equality, ‘is’ checks for identity.

Question 16

What does the ‘try’ keyword do in Python?

Answer 16

It begins a block of code to handle exceptions.

Question 17

What will be the output of the following code: print([1, 2, 3] + [4, 5])?

Answer 17

[1, 2, 3, 4, 5]

Question 18

Fill in the blank: The ________ keyword is used to handle exceptions in Python.

Answer 18

except

Question 19

Which method would you use to remove an item from a dictionary?

Answer 19

.pop()

Question 20

What is a lambda function?

Answer 20

A small anonymous function defined with the ‘lambda’ keyword.

Question 21

What is the output of the expression ‘Hello’.upper()?

Answer 21

‘HELLO’

Question 22

True or False: Python supports multiple inheritance.

Answer 22

True

Question 23

What is the purpose of the ‘with’ statement in Python?

Answer 23

To simplify exception handling and resource management.

Question 24

Which of the following is NOT a valid variable name in Python? (A) my_var (B) 2nd_var (C) myVar2

Answer 24

B

Question 25

What is the output of print(0.1 + 0.2 == 0.3)?

Answer 25

False

Question 26

Fill in the blank: A ________ is a collection of unique elements in Python.

Answer 26

set

Question 27

What does the 'map()' function do?

Answer 27

Applies a function to all items in an iterable.

Question 28

True or False: Python uses indentation to define code blocks.

Answer 28

True

Question 29

What is list comprehension?

Answer 29

A concise way to create lists using a single line of code.

Question 30

What does the 'filter()' function do?

Answer 30

Filters items out of an iterable based on a function.

Question 31

Fill in the blank: The ________ module in Python provides functions for working with dates and times.

Answer 31

datetime

Question 32

What is the purpose of the 'return' statement in a function?

Answer 32

To exit the function and return a value.

Question 33

Which of the following is a Python built-in data type? (A) Array (B) List (C) Vector

Answer 33

B

Question 34

What does 'strip()' do when called on a string?

Answer 34

Removes leading and trailing whitespace.

Question 35

What is the output of 2 ** 3?

Answer 35

8

Question 36

True or False: Python is a statically typed language.

Answer 36

False