Python 3 Interview Questions and Answers 2022 [updated]

Python 3 is a general-purpose interpreted, interactive, object-oriented, and high-level programming language. Python is a high-level, interpreted, interactive and object-oriented scripting language. Python 3 is designed to be highly readable. It uses English keywords frequently where as other languages use punctuation, and it has fewer syntactical constructions than other languages. Below are top 50+ Python 3 interview questions which can help you to find all your answers for python related problems.

Python 3

How to Install Python on Windows

There are three installation methods on Windows:

  1. The Microsoft Store
  2. The full installer
  3. Windows Subsystem for Linux

Python 3.0

Python 3.0.x should upgrade to the most recent version of Python 3; please see the downloads pages.

Applications of Python


As mentioned before, Python is one of the most widely used language over the web. I’m going to list few of them here:

Easy-to-learn − Python has few keywords, simple structure, and a clearly defined syntax. This allows the student to pick up the language quickly.

Databases − Python provides interfaces to all major commercial databases.

GUI Programming − Python supports GUI applications that can be created and ported to many system calls, libraries and windows systems, such as Windows MFC, Macintosh, and the X Window system of Unix.

Easy-to-read − Python code is more clearly defined and visible to the eyes.

Interactive Mode − Python has support for an interactive mode which allows interactive testing and debugging of snippets of code.

Portable − Python can run on a wide variety of hardware platforms and has the same interface on all platforms.

Extendable − You can add low-level modules to the Python interpreter. These modules enable programmers to add to or customize their tools to be more efficient.

Easy-to-maintain − Python’s source code is fairly easy-to-maintain.

A broad standard library − Python’s bulk of the library is very portable and cross-platform compatible on UNIX, Windows, and Macintosh.

Q.1 The following options are the salient features of Python except _.

1) Limited platform support

2) Simple to learn and understand

3) Broad standard library

4) Open source

Correct Answer is : Limited platform support

Q.2 The two main versions of Python include _.

1) Python 3.x and 4.x

2) Python 3.x and 6.x

3) Python 2.x and 3.x

4) Python 3.x and 5.x

Correct Answer is : Python 2.x and 3.x

Q.3 When using the Python shell and code block, what triggers the interpreter to begin evaluating a block of code?

1) Closed parenthesis

2) Semi colon symbol

3) Blank line

4) Colon symbol

5) Execute command

Correct Answer is : Blank line

Q.4 While using Python IDLE, by how many spaces are the code suites indented?

1) 1

2) 2

3) 3

4) 4

5) 5

Correct Answer is : 4

Q.5 Python supports automatic garbage collection.

1) True

2) False

Correct Answer is : True

Q.6 Is x, y = 5, 6 a valid statement?

1) True

2) False

Correct Answer is : True

Q.7 What command is used to output text from both the Python shell and within a Python module?

1) System.out.println()

2) count_print()

3) OutputStream()

4) print()

Correct Answer is : print()

Q.8 Equivalent operation for function pow(x, y) is __.

1) x * y

2) x ** y

3) x // y

4) x ^ y

Correct Answer is : x ** y

Q.9 Which statement accurately defines the bool class?

1) Boolean first returns False then the True value

2) Boolean Not returns False if the operand is True

3) Zero values are considered True always

4) Bool class is a subclass of array class

Correct Answer is : Boolean Not returns False if the operand is True

Q.10 Which statement creates the bytes literal when run?

1) bytes_literal = bytes(str_literal,’utf-8′)

2) bytes_literal = b’Copyright xc2xa9′

3) bytes_literal = bytes.encoded.count(0x54)

4) bytes_literal = bytes.str.count(0x54)

Correct Answer is : bytes_literal = b’Copyright xc2xa9′

Q.11 Values in bytearray should be integers between _.

1) 0-512

2) 0-255

3) 0-1024

4) 0-63

Correct Answer is : 0-255

Q.12 Which statements prevent the escape sequence interpretation?

1) subtext’coltcol2tcol3t’

2) col1tcol2tcol3t

3) escape’coltcol2tcol3t’

4) r’coltcol2tcol3t’

Correct Answer is : r’coltcol2tcol3t’

Q.13 a.difference(b) highlights the __.

1) a.union(b) – a.intersection(b)

2) a – b

3) a.union(b) – b.intersection(b)

4) a.intersection(b) – a.union(b)

Correct Answer is : a – b

Q.14 All of these range types are correct except __.

1) range(20,40,-2)

2) range(20,20,30)

3) range(20,40,’-2′)

4) range(20,20,2)

Correct Answer is : range(20,40,’-2′)

Q.15 Dictionary could be copied to another dictionary using which of following syntax?

1) dict_a = dict_b.clear()

2) dict_a = copy(dict_b)

3) dict_a=dict_b.copy()

4) dict_a = dict_b

Correct Answer is : dict_a=dict_b.copy()

Q.16 What is the output of the following code?
for x in range(1,100, 10):
print(x)

1) 1 11 21 31 41 51 61 71 81 91

2) 2 20 200

3) Error

4) 2-20-200

Correct Answer is : 1 11 21 31 41 51 61 71 81 91

Q.17 What is the output of the following code snippet?
for char in ‘Welcome’:
print (char, end=’*’)
print()

1) Welcome*

2) Welcome*

3) Welcome*

4) Error

Correct Answer is : Welcome*

Q.18 What is the output of the following code?
count = 0
while count < 2:
print (count, ” is less than 2″)
count = count + 2
else:
print (count, ” is not less than 2″)

1) Error

2) 0 is less than 2; 2 is not less than 2

3) 2 is not less than 2

4) 1 is less than 2; 3 is not less than 2

Correct Answer is : 0 is less than 2; 2 is not less than 2

Q.19 What is the output of the following code? for x in (1,10,100): print (x)

1) 1

       10

       100

2) error

3) 110100

4) 1 10 100

Correct Answer is : error

Q.20 Consider b is frozen set, what happens to b.add(3)?

1) 3 will be added as a constant

2) 3 will not be available for other general operations

3) Error as frozen sets cannot be modified

Correct Answer is : Error as frozen sets cannot be modified

Q.21 What is the output of bool(0)?

1) 1

2) Valid

3) False

4) True

Correct Answer is : False

Q.22 The class that provides immutable sequence of elements is __.

1) byte

2) string

3) list

4) tuple

Correct Answer is : tuple

Q.23 Which datatype is represented by int in Python 3?

1) Long

2) Decimal

3) Float

4) Short

Correct Answer is : Long

Q.24 Using Pop in list will remove the popped up item.

1) True

2) False

Correct Answer is : True

Q.25 Python is Ubiquitous. Is the statement true or false?

1) True

2) False

Correct Answer is : True

Q.26 While using slicing in lists, list[0:2] is equivalent to __.

1) list[0:3] -1

2) list[:2]

3) list[:-2]

4) list[-2:0]

Correct Answer is : list[:2]

Q.27 Which of these packages in Python help with scientific applications of Python?

1) SciPy and NumPy

2) ResearPy and AnalPy

3) MathPy and LabPy

4) Pygame and Pysci

Correct Answer is : SciPy and NumPy

Q.28 Which of these methods can be used with list objects, except ?

1) Reverse , Clear

2) Pop . Clear

3) Decode, Lambda

4) Reverse , Pop

Correct Answer is : Decode, Lambda

Q.29 What will be the output of below text?
info1 = ‘Infinity’
info1.find(‘a’)

1) -1

2) 0

3) infinity

4) 1

5) nan

Correct Answer is : -1

Q.30 Which methods can be used with list objects?

1) Lambda , Pop , Clear

2) Reverse , Decode, Lambda

3) Reverse , Pop , Clear

4) Decode , Pop , Clear

Correct Answer is : Reverse , Pop , Clear

Q.31 What characteristics describe the python programming language ?

1) Assembly compiled

2) Interpreted and open source

3) Interpreted and compiled

Correct Answer is : Interpreted and open source

Q.32 Which is the fastest implementation of Python?

1) Iron Python

2) CPython

3) Jython

4) Pypy

Correct Answer is : Pypy

Q.33 What is the output of min(‘Infinity’)?

1) 0

2) I

3) y

4) f

Correct Answer is : I

Q.34 Which of these could be used in tuple object

1) Sorted, Lens , Max

2) Append

3) Reverse , Max

Correct Answer is : Sorted, Lens , Max

Q.35 Which action should be avoided so that you do not mistakenly overwrite names that you have already defined?

1) use the wildcard import

2) Using aliases when importing

3) import selectively with aliases

4) import selective objects

Correct Answer is : use the wildcard import

Q.36 Which statement accurately defines the bool class?

1) Zero values are considered True some times.

2) Boolean Not returns False if the operand is True

3) Zero values are considered True always

4) Bool class is subclass of array class

Correct Answer is : Boolean Not returns False if the operand is True

Q.37 Which statements will result in slice of tuple?

1) a_tuple[0] =[5] a_tuple[::2]

2) a_tuple[::-1] a_tuple[0] =[5]

3) a_tuple[::2] a_tuple[:]

4) a_tuple[:] a_tuple[::-1]

Correct Answer is : a_tuple[::2] a_tuple[:]

Q.38 Which of these packages in python helps with scientific applications of Python ?

1) ResearPy & AnalPy

2) SciPy & NumPy

3) Pygame & Pysci

4) MathPy & LabPy

Correct Answer is : SciPy & NumPy

Q.39 Which of these is Desktop applications is created using Python ?

1) Sametime

2) Blender

3) Webscripting

4) Drop box

Correct Answer is : Drop box

Q.40 Which of the following attributes shows the characteristics of Python? Python is everywhere (Webscripting, 3D Modelling , Games , and Desktop applications ).

1) Ubiquity

2) Broad Standard Library

3) Powerful interpreter

4) Object Oriented

Correct Answer is : Ubiquity

Q.41 Python supports automatic garbage collection.

1) True

2) False

Correct Answer is : True

Q.42 Bitwise operators cannot be used on the float type.

1) True

2) False

Correct Answer is : True

Q.43 Python supports automatic garbage collection.

1) True

2) False

Correct Answer is : True

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