Python Tutorials

If you're coming from one of my Python tutorials, you'll find the code here. This repo is quite useless otherwise. :)

Topic	Link to Code	Link to Tutorial
Custom Python Decorator Patterns	Code	Custom Python Decorator Patterns Worth Copy-Pasting Forever
Makefiles for Python Projects	Code	The Case for Makefiles in Python Projects (And How to Get Started)
Python Math & Stats One-liners	Code	10 Python Math & Statistical Analysis One-Liners
Python JSON One-liners	Code	10 Python One-Liners for JSON Parsing and Processing
Optimize Python Code	Code	How to Optimize Your Python Code Even If You’re a Beginner
functools & itertools	Code	Python functools & itertools: 7 Super Handy Tools for Smarter Code
Uncommon Uses of Common Standard Library Functions	Code	Uncommon Uses of Common Python Standard Library Functions
Clean Python Crash Course	Code	Stop Writing Messy Python: A Clean Code Crash Course
Writing Readable Python Functions	Code	The Art of Writing Readable Python Functions
Efficient Python (for Beginners)	Code	How to Write Efficient Python Code Even If You’re a Beginner
Python Data Structures	Code	Python Data Structures Every Programmer Should Know
Commonly Misused Python Functions	Code	7 Python Functions You’re Probably Misusing (And Don’t Realize It)
Intro to Golang	Code	A Gentle Introduction to Go for Python Programmers
Big O Complexity	Code	Big O Complexity Cheat Sheet for Coding Interviews
Python Tips (for Data Efficiency and Speed)	Code	5 Python Tips for Data Efficiency and Speed
Automated Data Cleaning Pipeline	Code	Creating Automated Data Cleaning Pipelines Using Python and Pandas
Automate Data Cleaning in 5 Steps	Code	How to Fully Automate Data Cleaning with Python in 5 Steps
Advanced Error Handling	Code	Advanced Error Handling in Python: Beyond Try-Except
any() and all() Functions	Code	Python any() and all() Functions – Explained with Examples
Python Lists 101	Code	Lists in Python – A Comprehensive Guide
Update Python Dictionary	Code	How to Update a Python Dictionary
Generators 101	Code	Getting Started with Python Generators
Find set Difference	Code	How to Find Set Difference in Python
Convert Bytes to String in Python	Code	Convert Bytes to String in Python: A Tutorial for Beginners
RegEx for Data Cleaning	Code	5 Tips for Using Regular Expressions in Data Cleaning
Data Cleaning One-Liners	Code	10 Useful Python One-Liners for Data Cleaning
Unit Testing (Python Functions)	Code	How to Write Unit Tests for Python Functions
Unit Testing (Instance Methods)	Code	How to Write Unit Tests for Instance Methods in Python
Tips for Handling Large Datasets	Code	Tips for Handling Large Datasets in Python
Caching in Python	Code	How To Speed Up Python Code with Caching
Creating Custom Exceptions	Code	How (and Why) To Create Custom Exceptions in Python
Coding Interview Tips	Code	7 Must-Know Python Tips for Coding Interviews
Intro to Indexes in SQL	Code	How To Speed Up SQL Queries Using Indexes [Python Edition]
Writing Better Python Functions	Code	5 Tips for Writing Better Python Functions
Function Arguments	Code	Python Function Arguments: A Definitive Guide
Partial Functions	Code	Partial Functions in Python: A Guide for Developers
Useful Python Functions	Code	Lesser-Known Python Functions That Are Super Useful
Docker for Python Developers	Code	A Gentle Introduction to Docker for Python Developers
For-Else Loop Construct	Code	How Does Python's For-Else Loop Construct Work?
SQLite Tutorial	Code	A Guide to Working with SQLite Databases in Python
Psycopg2 Tutorial	Code	PostgreSQL in Python Using Psycopg2
Handling Key Errors	Code	How to Handle KeyErrors in Python – with Code Examples
Common Python Gotchas!	Code	5 Common Python Gotchas (And How To Avoid Them)
Python Oddities	Code	Python Oddities That Might Surprise You
Custom Context Managers in Python	Code	How To Create Custom Context Managers in Python
Convert Python Dict to JSON	Code	Convert Python Dict to JSON: A Tutorial for Beginners
Building Enumerations in Python	Code	Python Enum: How To Build Enumerations in Python
Natural Sorting (Install natsort with pip)	Code	Exploring Natural Sorting in Python
Pydantic Basics	Code	Pydantic Tutorial: Data Validation in Python Made Simple
Pathlib Tutorial	Code	How To Navigate the Filesystem with Python’s Pathlib
Pathlib File Management	Code	Organize, Search, and Back Up Files with Python’s Pathlib
Walrus Operator	Code	How (Not) To Use Python’s Walrus Operator
Tracing Memory Allocation	Code	How To Trace Memory Allocation in Python
Merge Python Dicts	Code	3 Simple Ways to Merge Python Dictionaries
Unit Testing w/ Pytest	Code	Beginner’s Guide to Unit Testing Python Code with Pytest
String Manipulation One-Liners	Code	15 Useful Python One-Liners for String Manipulation
Useful Decorators	Code	7 Powerful Python Decorators to Level Up Your Coding Game
Useless Python Functions	Code	7 “Useless” Python Standard Library Functions You Should Know
Timedelta (work w/ time intervals)	Code	How to Use timedelta Objects in Python to Work with Dates
Logging in Python	Code	Logging in Python: A Developer’s Guide
Python for Data Science 101	Code	Python for Data Science (Free 7-Day Mini-Course)
Working with Env Vars	Code	How to Work with Environment Variables in Python
Parsing INI Config Files	Code	How to Parse INI Config Files in Python with Configparser
Parsing TOML Files	Code	How to Work with TOML Files in Python
Pydantic for Developers	Code	The Complete Guide to Pydantic for Python Developers
Parsing JSON	Code	How to Parse JSON in Python – A Complete Guide With Examples
Parsing XML	Code	How to Parse XML in Python Without Using External Libraries
Writing Readable Python Functions	Code	How to Write Readable Python Functions Even If You’re a Beginner
Working with YAML	Code	How to Work with YAML in Python – A Guide with Examples
Writing Better Data Classes	Code	How to Write Efficient Python Data Classes
Secure Hashing	Code	How to Perform Secure Hashing Using Python's hashlib Module
Handle Large Datasets	Code	How to Handle Large Datasets in Python Even If You’re a Beginner
The Complete Guide to Logging	Code	The Complete Guide to Logging for Python Developers
Working with the ORC File Format	Code	How to Work with the ORC File Format in Python – A Guide with Examples
Memory Management	Code	Everything You Need to Know About How Python Manages Memory
DIY JSON Processing Functions	Code	5 Useful DIY Python Functions for JSON Parsing and Processing
DIY Date & Time Parsing Functions	Code	5 Useful DIY Python Functions for Parsing Dates and Times
Singleton Pattern	Code	How to Build a Singleton in Python (and Why You Probably Shouldn't)
Builder Pattern	Code	How to Use the Builder Pattern in Python – A Practical Guide for Developers
Factory Pattern	Code	How to Use the Factory Pattern in Python - A Practical Guide
Observer Pattern	Code	How to Implement the Observer Pattern in Python
Building a Simple MCP Server	Code	Building a Simple MCP Server in Python
Working with Parquet Files	Code	How to Work with Parquet Files in Python – A Guide with Examples