Python Snippets

The snippet library collects 15 ready-to-use Python code snippets that solve everyday problems — reading and writing files, sorting with custom keys, flattening lists, parsing strings, and similar tasks that appear in almost every project. Each snippet page explains what the code does, when you would reach for it, and shows the complete implementation with a usage example so you can copy it straight into your codebase. Browse the collection: Read a File, Write to a File, List Comprehension, Lambda (Anonymous) Functions, Exception Handling, Decorator Pattern, Generators and yield, Custom Context Manager, Sort Dictionary by Value, Flatten a Nested List, Generate requirements.txt, Classes and Inheritance. Every snippet uses only the Python standard library, works on Python 3.8 and later, and links back to the relevant function references such as print(), len(), range(), type(), int(), float(), str(), bool(), list(), dict(), set(), tuple() so you can dig into any API it relies on.