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Solve 250 Python Exercises (Udemy.com)

Solve 250 coding exercises to boost your Python skills and prepare for a test or interview. Python Cheat Sheet included!

Created by: Mihai Ctlin Teodosiu

Last updated July 2026

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What you will learn

  • You will solve 250 coding exercises ranging from beginner to advanced level and covering all the key Python concepts.
  • You are going to DOWNLOAD a comprehensive Python CHEAT SHEET, as well as a PDF Course Notebook.
  • You will have MY FULL SUPPORT for every course-related question or suggestion, plus the help of the community.
  • You will have LIFETIME ACCESS TO COURSE UPDATES and new content, anytime, anywhere, on any device.

How it compares

Against the other 388 rated Udemy courses in Python on CourseDuck:

  • Rating4.5 out of 5higher than 52% of them
  • Reviews1,001#186 of 389 by number of reviews
  • Length0.8 hoursshorter than 99% of them
  • Last updatedJuly 2026more recently than 92% of them

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Course Description

COURSE STATUS: LEGACY

This course is no longer being maintained, starting January 1st, 2026.

Although the content still brings real value, updates and support have been discontinued.



  • Practice and boost your Python skills with 250 coding exercises.

  • No slides, no boring theory, no rambling, no chitchat. Just practice!

  • All my Python courses have received thousands of 5* reviews.

  • Over 100,000 satisfied students across several e-learning platforms.

  • Python Cheat Sheet and a Certificate of Completion are included.


Note! It is strongly recommended that you have some basic-to-intermediate Python experience, or go through my Python Bootcamp: Learn, Code, Build course before attempting to solve the practice activities in this course.


What others have to say about my courses?

  • "What an incredible value and learning experience!" by Sean A.

  • "Excellent material. Kudos to a great instructor with a vast level of creativity." by Anthony W.

  • "The instructor is an excellent professional, skillful and engaging." by Georgios T.

  • "I can say this man is going on smoothly and perfectly, explaining in the most empirical way." by Kolapo A.


Why would you take this course?

  • Do you want to become a better Python Developer without having to spend a lot on boring theoretical courses?

  • Do you want to expand and solidify your Python skills in an organized way, with the help of 250 coding exercises?

  • Do you want to prepare for an interview and upgrade your career in a 100% hands-on fashion, with instructor support available?


What's this course all about?

  • You will have to solve 250 coding exercises ranging from beginner to advanced level and covering all the key Python concepts taught in my Python Bootcamp: Learn, Code, Build Udemy course.

  • This course contains practice activities covering the following Python concepts: strings, lists, tuples, ranges, sets, dictionaries, conditionals, loops, exceptions,  functions, file operations, regular expressions, classes and objects, comprehensions, lambda functions, among others.

  • On top of that, you will get my Python Beginner's Cheat Sheet PDF, two videos covering 10 ways to earn money and build a portfolio using your Python skills, a certificate of completion and lifetime access to the course and any upcoming updates.


How is this course structured?

  • Section 1: Some Initial Thoughts

  • Section 2: Installing Python for Testing Your Solutions

  • Section 3: Download the Python Cheat Sheet

  • Section 4: Solve 250 Coding Exercises in Python

  • Section 5: 10 Ways to Earn Money and Build a Portfolio with Python

  • Section 6: Final Section


Important information before you enroll!

  • Don't forget you are covered by a 30-day money back guarantee, full refund, no questions asked.

  • Once enrolled, you have unlimited, 24/7, lifetime access to the course from any device.


I strongly encourage you to boost your Python skills and take your job and career to the next level!

Let's get started!

Enroll now and I'll see you in the first lecture!

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Instructor Details

Mihai Ctlin Teodosiu

Hi,


My name is Mihai and I'm a Network Engineer, as well as a Python and Cybersecurity enthusiast.

I have a BS degree in Telecommunications and Information Technology from University Politehnica of Bucharest, Romania, and I also hold the CCNP RS, CCNA RS, CCDA, JNCIA, and ISTQB CTFL certifications.


What are my credentials?

▪ 18+ years experience in IT, Networking, and QA Engineering.

▪ Using Python for building network and security applications.

▪ Certified professional: Cisco, Juniper, and ISTQB certifications.

▪ Teaching courses on Udemy and other platforms since 2015.

▪ 100,000+ satisfied students, 4.6 / 5 average course rating.


What are my students saying about the kind of courses I create?
• "What an incredible value and learning experience!" by Sean A.

• "Kudos to a great instructor with a vast level of creativity." by Anthony W.

• "I can say this man is explaining in the most empirical way." by Kolapo A.


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Reviews

4.5

1,001 ratings on Udemy

Select a bar to show only those reviews.Select the bar again to show every rating.

By Trader FDAX on 7/26/2024

Great resources for refreshing and practicing my Python skills. The instructor does a great job in organizing everything and putting together an invaluable resource for us to benefit from. Highly recommended! Thanks.

By Anonymized User on 6/13/2024

It's a great starting point for beginners, with clear explanations and plenty of practice exercises. However, intermediate learners might find it lacking in depth. Overall, a solid course to build a strong foundation in Python. overall nice course

By Philip Holst Riis on 5/12/2024

Good for testing basic Python skills. Also useful if you are just brushing up on your Python skills. However, the course has an over-emphasis on the exercises for regular expressions (regex) compared to the other topics. Moreover, the proposed solutions to some of the regex exercises are "problematic" and incomplete meaning that beginners may encounter unexpected results if they apply them in real-life. The wording in some of the exercises is also slightly confusing and counter intuitive.

By Pavlína Hanušová on 10/7/2023

Terribly useful for me! Together with the Python complete Masterclass for Beginners, it's the perfect tool to get into the basics of Python. I really appreciate the opportunity to practice what I've learned in the exercises. Thank you, Mihai, for your good work!

By Onur Seckin SEZER on 4/27/2021

clear explanations on exercises and good emphasises inside topics. Most of the exercise was challenging to solve and also inclusively useful to learn and aplly on real life. but one thing that I will recommend is, in correct solution step after each exercise, the correct result could be written on sub-screen and when the solver sees that it would be amazing to compare ral result and expected result on his/her mind.

By Ana Lukic on 4/1/2021

Good exercises for beginners. I have been finished just one very detailed and complete Python course from Udemy and I solved this 250 exercises for 2-3 days. We should not forget that the repetition is the mother of knowledge. Suggestion for some future course: include explanation in exercise that is solved, for the people that do not understand and want to learn.

By Gilbert Yee on 9/18/2020

Python 3 Workout Review My rating: 4-stars The requirements state “people having intermediate Python knowledge at least.” The description states “This is a Python 3 practice course aimed at intermediate Python developers.” The course is focused on syntax and basic functions, which is beginner level material. I consider the section on Regular Expressions as beginner material because we are mindlessly following rules on symbol usage. Who should enroll in this course? You’ve never programmed before. You’ve either just completed your first Python course, or read a Python book/tutorial. This course would be a natural next step to take. Treat this course as a 250-question final exam. Use it to gauge your proficiency on Python syntax, basic functions, and the fundamentals of programming. If you can complete this ‘exam’ without too much difficulty, then you’re ready to move onto actual intermediate topics in Python and/or programming. Instructor responsiveness The instructor answered questions roughly within the promised time frame. He even reformatted his cheat sheet per my suggestion. :D

By Adiv Abramson on 8/27/2020

I am looking forward to solving the challenges in this course and developing greater proficiency in basic Python 3 scripting. I have now completed this course and consider it an invaluable resource for evaluating and improving my understanding of Python 3 programming fundamentals. I look forward to taking the other course offered by the instructor that features 250 multiple choice quizzes. I felt I learned a great deal from this series of exercises, not only in programming techniques but also in reading and understanding requirements. On some of the exercises where I couldn't get the right solution, it was due to my misunderstanding of the problem statement. It's very important to know how to code but it's equally important to know how to read and listen to the instructions, avoid making unjustified assumptions, and to double or triple check the results of the code against the problem statement. I would have gotten several more exercises correct on the first pass if I had better comprehension of the directions provided in the exercises. One of the very best features of the course is the Q & A section where students discuss any issues they had with the exercises. I appreciate the course instructor responding to my queries quickly and providing clarification on concepts that I had failed to grasp properly. There's a great deal to learn from one's own mistakes as well as those of others. This is a fantastic course to take for any beginning Python 3 programmer who has already completed one or more introductory courses authored by this instructor. Only by writing code that correctly solves a problem, over and over again, can beginners like myself hope to one day reach a professional level of competence and skill in the very popular Python 3 programming language. Great course! Highly recommended!

By Sara Smith on 12/9/2019

This course helped me to gain more confidence with Python. I am taking "Python 3 Complete MasterClass - Make your job tasks Easier!" and this course together. They go hand to hand. This course is a great way to get practice and get more confidence with coding!

By Johnny Yk on 9/23/2019

I really needed a course like this to practice the Python skills I got from Mihai's Python 3 Masterclass course. I'm planning to finish all 250 exercises by the end of the month, so wish me luck :) And thanks for this great course!

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Overall Score : 90 / 100