Learn to Code with Hands-On Exercises
Practello is an education platform for developers of all levels. Practice with 50,257+ coding exercises across 20 topics — each one includes a clear explanation, starter code, hints, and a full solution. Pick a topic and start solving.
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Python Fundamentals · python · intermediate
Built for developers at every level
Whether you are writing your first function or exploring a new language, there are exercises for you.
Beginners
Start from scratch with beginner exercises that teach one concept at a time.
Self-taught developers
Fill knowledge gaps with structured exercises across topics you missed.
Senior developers
Explore new languages, frameworks, and advanced patterns through practice.
Interview candidates
Sharpen algorithms, data structures, and system design skills.
Pick a topic, start practicing
Choose a programming language or framework. Each topic has exercises from beginner to advanced — with explanations, starter code, and solutions.
How it works
Three simple steps to start learning.
Pick a Topic
Choose a programming language, framework, or subject — frontend, backend, databases, algorithms, or another track from our catalog.
Solve the Exercise
Read the explanation, start from the provided code, use hints when you get stuck, and compare your answer with the reference solution.
Track Your Progress
Bookmark exercises, monitor your completion rate, and explore related exercises. Subscribe to Pro for full features or buy exercise bundles for permanent access.
Everything you need to learn by doing
Each exercise comes with everything you need to understand the concept, write the code, and check your solution.
Large Exercise Library
Browse exercises by topic, difficulty, and tags. Each item is a self-contained lesson with explanation, starter code, and a vetted solution.
20+ Topics
Follow curated curricula across frontend, backend, data, DevOps, security, and more — layer by layer, from fundamentals to advanced topics.
Progress & Bookmarks
Track completion, save exercises to collections, and pick up where you left off. Pro unlocks full progress history across every topic.
Explanations & Solutions
Every exercise includes teaching text and a reference implementation. Free accounts see full solutions on sample exercises; Pro extends access per your subscription.
Multiple Languages
Practice in the languages that match your stack — JavaScript, TypeScript, Python, SQL, and more — within each topic.
Developer-Friendly UI
Read and copy code in a clean, distraction-free interface with optional dark mode for longer study sessions.
Structured digital learning materials with immediate access after purchase
Subscriptions and one-time collections described before checkout
Published windows for subscriptions and collections
HTTPS and a published Privacy Policy for account data
Start practicing today
Create a free account, browse exercises, and start solving. Upgrade for full access when you are ready.
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