1582 articles
Master Python exception handling with try/except/finally, exception hierarchies, custom exception classes, and patterns for writing robust production code that fails gracefully.
Build a complete REST API with FastAPI from scratch. This guide covers routing, Pydantic models, dependency injection, authentication, and async database access — everything you need to ship a production API.
Complete guide to Python file handling: reading and writing text and binary files, working with CSV and JSON, using pathlib, and handling file errors safely with context managers.
Master Python functions: def syntax, arguments, return values, *args/**kwargs, lambda, closures, and first-class functions. Everything from beginner basics to advanced patterns used in production code.
Learn Python identifier rules, PEP 8 naming conventions, reserved keywords, and naming patterns for variables, functions, classes, and constants. Write professional, readable Python code from day one.