Python is a high-level programming language that has become increasingly popular in recent years, especially in the field of data science and machine learning. If you’re a fresher looking to get into Python programming, you’ll need to prepare for potential interview questions to land your dream job. In this blog, we’ll go over the top 20 Python interview questions and their answers to help you prepare.

1. What is Python?

Python is a high-level, interpreted programming language used for web development, data analysis, artificial intelligence, and other applications.

2. What are the advantages of Python?

Python is easy to learn and understand, has a vast library of modules and functions, has high-level built-in data structures, and is an open-source language with a large developer community.

3. What are the different data types in Python?

Python has several data types, including integers, floating-point numbers, strings, Booleans, and complex numbers.

4. What is PEP 8?

PEP 8 is a set of guidelines for Python code style and formatting that make code more readable and consistent across different projects.

5. What is the difference between a list and a tuple in Python?

Lists and tuples are both types of sequences in Python, but lists are mutable, while tuples are immutable. This means you can modify a list by adding, removing, or changing elements, but you cannot modify a tuple after it is created.

6. What is a dictionary in Python?

A dictionary is a collection of key-value pairs in Python. It is similar to a hash table or associative array in other programming languages.

7. What is a lambda function in Python?

A lambda function is an anonymous function in Python that can take any number of arguments, but can only have one expression.

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

‘==’ is used to compare the values of two objects in Python, while ‘is’ is used to compare the identities of two objects.

9.What is a module in Python?

A module is a file containing Python definitions and statements. It can be used to organize code and make it reusable across different programs.

10.What is pip in Python?

Pip is a package manager for Python that is used to install, upgrade, and uninstall Python packages.

11. What is the purpose of the in it method in Python?

The in it method is a special method in Python classes that is called when an object is created. It is used to initialize the attributes of the object.

12. What is object-oriented programming in Python?

Object-oriented programming is a programming paradigm that focuses on creating objects that contain both data and methods to manipulate that data.

13.What is the difference between a class and an object in Python?

A class is a blueprint for creating objects, while an object is an instance of a class.

14.What is a decorator in Python?

A decorator is a function that takes another function as an argument and adds functionality to it without changing the function itself.

15.What is the purpose of the str method in Python?

The str method is a special method in Python classes that is called when the object is printed using the print() function. It is used to return a string representation of the object.

16.What is recursion in Python?

Recursion is a technique in programming where a function calls itself to solve a problem. It is often used to solve problems that can be broken down into smaller subproblems.

17.What is a generator in Python?

A generator is a special type of iterator in Python that generates a sequence of values on the fly, rather than storing them in memory.

18.What is the use of self in Python?

Self is used to represent the instance of the class. With this keyword, you can access the attributes and methods of the class in python. It binds the attributes with the given arguments. self is used in different places and often thought to be a keyword. But unlike in C++, self is not a keyword in Python.

19.What are unit tests in Python?

Unit test is a unit testing framework of Python.

Unit testing means testing different components of software separately. Can you think about why unit testing is important? Imagine a scenario, you are building software that uses three components namely A, B, and C. Now, suppose your software breaks at a point time. How will you find which component was responsible for breaking the software? Maybe it was component A that failed, which in turn failed component B, and this actually failed the software. There can be many such combinations.

This is why it is necessary to test each and every component properly so that we know which component might be highly responsible for the failure of the software.

20.What is docstring in Python?

• Documentation string or docstring is a multiline string used to document a specific code segment.
• The docstring should describe what the function or method does.

Conclusion

In conclusion, if you are a fresher preparing for a Python interview, it is important to have a good understanding of the basics of Python programming language. Practice coding, work on small projects, and review common interview questions to help build your confidence and enhance your problem-solving skills. Some companies like Solitaire infosys also provide industrial training in many languages including python. It is one of the best python training provider in Chandigarh. They provide both 6 week and 6 month industrial training in Chandigarh. 

In this blog, we have covered the top 20 Python interview questions that are frequently asked in Python job interviews for freshers. These questions cover a wide range of topics such as data types, control flow, object-oriented programming, and more. By understanding and practicing these questions, you can increase your chances of performing well in a Python job interview.

Remember that while technical knowledge is important, interviewers are also interested in your communication skills, problem-solving ability, and your ability to work in a team. So, be confident, be well prepared, and show your passion for programming during the interview.