Top 33+ python interview questions and answers (PDF) for Freshers [2021 Latest]

Python Interview Questions & Answers PDF 2022. Here, you will come across some of the most frequently asked questions in Python job interviews in various fields.

python interview questions and answers

Advanced Level Python Interview Questions for Experienced and Professionals Like as a What is Python?, What are the key features of Python?, What are Keywords in Python?, What are functions in Python?, What is Pandas?, What are dataframes?, What is a Pandas Series?, What is Pandas groupby?, What are Literals in Python and explain about different Literals?, How can you concatenate two tuples?, How can you initialize a 5*5 numpy array with only zeroes?

These Python Developer interview questions will help you land in following job roles:

  • Python Developer
  • Research Analyst
  • Software Engineer
  • Data Scientist
  • Data Analyst
  • Machine learning engineer

Learn about interview questions and interview process for python companies.

i have all the classified them into the following sections like:

  • Python Interview Questions for Freshers
  • Python Interview Questions for Experienced
  • Python OOPS Interview Questions
  • Python Pandas Interview Questions
  • Numpy Interview Questions
  • Python Libraries Interview Questions
  • Python Programming Examples

We will introduce you to the most frequently asked questions in Python interviews for the year 2022. Basic Level Python Interview Questions for Freshers and Beginners.

Question 1 : Is String in Python are immutable? (Yes/No)

Answer is Yes.

Question 2 : What is the difference between list and tuples in Python?

LIST vs TUPLES

LIST TUPLES
Lists are mutable i.e they can be edited. Tuples are immutable (tuples are lists which can’t be edited).
Lists are slower than tuples. Tuples are faster than list.
Syntax: list_1 = [10, ‘Chelsea’, 20] Syntax: tup_1 = (10, ‘Chelsea’ , 20)

Question 3 : What are Keywords in Python?

There are following 33 keywords in python-

  • And
  • Or
  • Not
  • If
  • Elif
  • Else
  • For
  • While
  • Break
  •  As
  • Def
  • Lambda
  • Pass
  • Return
  • True
  • False
  • Try
  • With
  • Assert
  • Class
  • Continue
  • Del
  • Except
  • Finally
  • From
  • Global
  • Import
  • In
  • Is
  • None
  • Nonlocal
  • Raise
  • Yield
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Question 4 : Is there any double data type in Python?

Answer is No.

Question 5 : What are the built-in types of python?

Built-in types in Python are as follows –

  • Integers
  • Floating-point
  • Complex numbers
  • Strings
  • Boolean
  • Built-in functions

Question 6 : Which programming Language is an implementation of Python programming language designed to run on Java Platform?

Jython – meanning of the Jython – (Jython is successor of Jpython.)

Question 7 : How do we execute Python?

here Python files first compile to bytecode. Then, the host executes them.

Question 8 : How is Python different from Java?

Following list is the comparison of Python vs Java –

Java is faster than Python
Java is platform-independent
Java has stronger database-access with JDBC
Java is verbose
Java is statically typed.
Java needs braces.

Python mandates indentation.
Python is dynamically-typed;
Python is simple and concise;
Python is interpreted

Question 9 : A canvas can have a foreground color? (Yes/No)

Answer is Yes.

Question 10 : Now, print this string five times in a row.

>>> for i in range(6):
print(s)

Results:

Welcome To Pakainfo

Welcome To Pakainfo

Welcome To Pakainfo

Welcome To Pakainfo

Welcome To Pakainfo

Welcome To Pakainfo

Question 11 : Is Python platform independent?

Answer is No.

Question 12 : Write code to print everything in the string except the spaces.

>>> for i in s:
if i==' ': continue
print(i,end='')

Result
WelcomeToPakainfo

Question 13 : Write code to print only upto the letter t.

>>> i=0
>>> while s[i]!='t':
print(s[i],end=’’)
i+=1

Question 14 : Do you think Python has a complier?

Answer is Yes.

Question 15 :What if you want to toggle case for a Python string?

I have the swapcase() method from the str class to do just that.

>>> 'Pakainfo'.swapcase()

Question 16 :How will you sort a list?

Sorts objects of list, use compare func if given.

list.sort([func])

Question 17 :How will you reverse a list?

Reverses objects of list in place.

list.reverse()

Question 18 :Explain Python List Comprehension.

The list comprehension in python is a way to declare a list in one line of code.

>>> [i for i in range(1,11,2)]

//[1, 3, 5, 7, 9]

>>> [i*2 for i in range(1,11,2)]

//[2, 6, 10, 14, 18]

Question 19 : How will you remove an object from a list?

Removes object obj from list.

list.remove(obj)

Question 20 : How do you calculate the length of a string?

>>> len('Welcome To Pakainfo')

Question 21 : What are membership operators?

With the operators ‘in’ and ‘not in’, i can confirm as well check if a value is a member in another.

>>> 'me' in 'disappointment'
// retur true

>>> 'us' not in 'disappointment'

// retur true

Question 22 : Explain logical operators in Python.

I have Main 3 types of the logical operators- and, or, not.
Python and logical operators

>>> False and True

//Return False

Python or logical operators

>>> 7<7 or True

//Return True

Python not logical operators

>>> not 2==2
//Return False

Question 23 : How will you remove a duplicate element from a list?

i can turn it into a set to do that.

>>> list=[1,2,1,3,4,2]
>>> set(list)

Question 24 : How will you convert a list into a string?

i will use the join() method for this.

>>> ranks=['single','second','third','fourth','fifth','sixth','seven']
>>> s=' '.join(ranks)
>>> s

Question 25 : What is the Python interpreter prompt?

It is the special following sign for Python Interpreter:

>>>

If you have worked with the IDLE, you will see this prompt.

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Question 26 : How will you check if all characters in a string are alphanumeric?

For this, i use the method isalnum().

When does a new block begin in python?

A block begins when the line is intended by 4 (Four) spaces.

Question 27 : Can True = False be possible in Python?

Answer is : No.

Question 28 : What is the difference between lists and tuples?

Lists Tuples
Lists are mutable, i.e., they can be edited Tuples are immutable (they are lists that cannot be edited)
Lists are usually slower than tuples Tuples are faster than lists
Lists consume a lot of memory Tuples consume less memory when compared to lists
Lists are less reliable in terms of errors as unexpected changes are more likely to occur Tuples are more reliable as it is hard for any unexpected change to occur
Lists consist of many built-in functions. Tuples do not consist of any built-in functions.
Syntax:

list_1 = [10, ‘Intellipaat’, 20]

Syntax:

tup_1 = (10, ‘Intellipaat’ , 20)

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Question 29 : What are the applications of Python?

It is used in various software domains some application areas are given below.

Enterprise and business applications development
GUI based desktop applications
Games
Image processing and graphic design applications
Scientific and computational applications
Language development
Operating systems
Web and Internet Development

Question 30 : Can we preset Pythonpath?

Yes, we can preset Pythonpath as a Python installer.

Question 31 : What are the supported standard data types in Python?

Dictionary.
List.
Number.
Tuples.
String.

Question 32 : Write a function to give the sum of all the numbers in list?

Sample list − (200, 300, 800, 600, 0, 200)

Expected output − 2100

Program for sum of all the numbers in list is −

def sum(numbers):
   total = 0
   for num in numbers:
      total+=num
   print(''Sum of the numbers: '', total)
sum((100, 200, 300, 400, 0, 500))

Question 33 : Python Interview Questions with Answers for freshers

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