The more complex the problem, the more ways there are to solve it. Our assignments don’t have “one right answer” and you won’t get stuck because of a typo or different approach. Our system understands logic — just like a human would.
Experiment, try different approaches, and share your solutions. You won’t find such experience in typical online courses.
Traceback (most recent call last):
File "/opt/app/main.py", line 5, in <module>
start_engine()
File "/opt/app/core/runtime.py", line 147, in start_engine
bootstrap(load_registry())
File "/opt/app/lib/registry.py", line 88, in load_registry
return json.loads(cache.read())
File "/opt/app/deps/_native.so", line 56, in read
ImportError: cannot import name 'cache' from partially initialized module 'registry' (most likely due to a circular import)
File "/opt/app/lib/config/loader.py", line 12, in resolve_path
return resolve_path(os.getenv("CONFIG_PATH"))
RecursionError: maximum recursion depth exceeded You’ve almost finished an assignment. Almost found that switch that lights up above your head. And suddenly — an error. The message on the screen looks more like ancient cipher.
Ask someone or try ChatGPT? You can easily get led astray because they don’t know the context, requirements, and so on. Even if you provide them, you’ll lose your flow.
You almost did it. Going to sleep is not an option.
It’s not a trendy sidebar chatbot. It’s integrated into the learning experience and provides real help where you need it most.

Without 300 hours of fluff videos to look massive. One language. Fundamentals. Cooked properly.
Essentials every developer should start with. Not the kind of content that puts you to sleep.
Thanks for such an interesting and clear course. It was awesome. Best Python course I've seen — both accessible and with really engaging assignments. Plus, the instructor and fellow students were great at helping me work through anything I found confusing.
Thanks so much for the course! I had such an amazing time with it, and it really inspired me to keep learning the language. Best wishes for the course's growth, and good luck to all future students on their Python journey.
Thanks so much for the lessons. I loved both the way the theory was presented and the hands-on practice. Solving problems with the bot is really engaging — it's not like reading a book or watching videos, you grasp concepts faster and spot your mistakes quicker, learn to write proper code, and experiment freely. Sure, these are just fundamentals, but they're enough to get you started — you can find similar code online, modify it for your needs, and pick up techniques from other developers.
I want to give huge thanks to both the course creator and the entire community in the comments. First, the atmosphere is incredibly friendly; second, the all-in-one environment — it shows you exactly what went wrong. You've truly built something amazing, you're always ready to help with questions, and the love you put into this is remarkable. Thanks for getting me excited about programming and giving me the chance to spend countless hours on such varied and interesting challenges. Definitely the best course for beginners!
Thanks so much for this fantastic course! I completed all the lessons in just over a month — it was so addictive I could barely stop!
I want to thank you for this course! The material is presented in such a pleasant, well-paced way. The assignments are perfectly chosen. I actually got into programming completely by accident and stumbled across your course just as randomly. But while working through the course, my motivation to keep learning just kept growing. Now I'm really eager to develop my programming skills as much as I can independently, and then try to land my first job in the field.
Sergei, thank you so much for your course. Everything is very accessible and really useful. As a kid I knew BASIC on the ZX-Spectrum and tried making some things, but after that I didn't touch programming for years. I decided to try Python, but getting started with books was tough. With your help I got started. Now I'm planning to dive into the books you recommend. Thanks again!
Thanks to the many practical assignments, excellent theory flow, and feedback, this is probably the best Python fundamentals course. Huge thanks to everyone who takes part in creating and supporting this resource! You guys are amazing!
Guys, I'm 38. Twenty years ago in college we learned Pascal. I had a computer with a 486 processor and would stay up all night programming — it felt like nothing could be better. Why didn't I choose programming as a career back then? But I know for certain I won't give up this time; my path forward is clear. This course opened a new world for me. Thank you to the creators for such an amazing project. Thanks to Sergei Kotov and his super-Bot. Looking forward to updates.