Complete curriculum
Python Course
Follow the lessons in order—from your first development environment through testing, APIs, concurrency, and professional package distribution.
1.5. Basic Error Handling
Prepare for inevitable mistakes - catch, handle, and recover from errors so your scripts don't just crash at the first sign of trouble.
Read ArticleChapter 2: Intermediate Python
Move from Python fundamentals to object-oriented design, file persistence, package management, robust exceptions, and automated testing.
Read Article2.1. Object-Oriented Programming (OOP)
Learn Python object-oriented programming through classes, encapsulation, inheritance, composition, polymorphism, and practical design patterns.
Read Article2.2. File I/O & Data Persistence
Learn to read from and write to files, handle different formats, and make your programs interact with real data that survives after your script ends.
Read Article2.3. Virtual Environments & Package Management
Create isolated Python environments, manage dependencies with pip, maintain requirements files, and troubleshoot package conflicts safely.
Read Article2.4. Exceptions & Robust Error Handling
Learn to catch and handle errors cleanly so your code doesn't crash--and users see helpful messages instead of tracebacks.
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