Use Python sets to ensure unique collections: learn add(), update(), common pitfalls, performance tips, and real-world examples for clean, efficient code.

Adding Elements to Python Sets

Learn how to use Python context managers (`with`), build custom managers, and handle exceptions to manage resources safely and cleanly.

Python Context Manager Guide

Mastering Python Context Managers

Learn how to pretty print JSON in Python using built-in modules like json and pprint for readable output in scripts and logs.

How to Pretty Print JSON in Python?

Learn what Python decorators are, how they work, and how to use them effectively in your code.

What Are Python Decorators?

Understand the difference between Python modules and packages, learn when to use each, and organize your code effectively.

What are the differences between Python Modules and Packages?

Convert JSON to Python dict with json.loads, error handling, streaming large files, and performance tips using orjson or ujson.

How to save JSON to a Dictionary in python

Learn how to write strings to files in Python using open(), write(), and context managers for efficient file I/O.

Python Write String to File

How to Write a String to a File in Python

Save data to CSV in Python using csv.writer, DictWriter, encoding tips, and performance best practices.

How to save data to CSV file in python?

How to save data to a CSV file in python?

Learn how to use Python’s lambda functions with sorted() and list.sort() for flexible, custom sorting of numbers, strings, dicts, and more.

How to sort in Python using Lambda

Learn how to get the index of an item in a Python list with built-in methods, error handling, custom functions, and performance tips.

Python Get Index of Item in List

Append items to Python dictionaries using update(), setdefault(), defaultdict, dict unpacking, and best practices for clean, predictable code.

Python Append to Dictionary

Learn how to generate and manage UUIDs in Python using the uuid module, covering versions, formatting, techniques, and best practices.

Python UUID Generator

Learn various ways to check if a list is empty in Python using len(), truthiness checks, comparisons, and best practices.

How to Check if a Python List Is Empty

Learn how to iterate with an index in Python using enumerate, range, and tips for clean, error-free loops.

Python for Loop with Index

Python For Loops with Index

Learn how to use Python's one-line if-else (ternary) expression for concise conditionals with examples, best practices, and tips.