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Latest articles

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Cover image for Python Operators and Decision Making: if, elif, else, and match

3 weeks ago 111

Python Programming

Python Operators and Decision Making: if, elif, else, and match

Lesson 2: give your Python programs a brain with operators, truthiness, if/elif/else ladders, conditional expressions, and the modern match statement, with a live playground and quizzes.

Cover image for Python Loops and Flow Control: for, while, break, and continue

3 weeks ago 120

Python Programming

Python Loops and Flow Control: for, while, break, and continue

Lesson 3: master repetition with while, for, range, break, continue, loop else, nested loops, and the accumulator pattern, including FizzBuzz and a live playground with exercises.

Cover image for Python Functions Explained: Arguments, Returns, Scope, and Lambdas

3 weeks ago 113

Python Programming

Python Functions Explained: Arguments, Returns, Scope, and Lambdas

Lesson 4: turn scripts into reusable tools with def, arguments and defaults, return values, scope rules, *args and **kwargs, docstrings, and lambdas, with refactoring exercises in a live playground.

Cover image for Python Data Structures: Lists, Tuples, Sets, Dicts, and Comprehensions

3 weeks ago 107

Python Programming

Python Data Structures: Lists, Tuples, Sets, Dicts, and Comprehensions

Lesson 5: lists, tuples, sets, and dictionaries, how to choose between them, and the comprehensions, enumerate, and zip idioms that make Python feel like Python, with a word-counter project.

Cover image for Python Concurrency Basics: Threads, Processes, and asyncio

3 weeks ago 40

Python Programming

Python Concurrency Basics: Threads, Processes, and asyncio

Lesson 12: a clear, honest introduction to Python concurrency: I/O-bound versus CPU-bound, ThreadPoolExecutor, the GIL without panic, multiprocessing, and asyncio with gather, run live in the browser.

Cover image for Object-Oriented Python: Classes, Inheritance, and Dataclasses

3 weeks ago 74

Python Programming

Object-Oriented Python: Classes, Inheritance, and Dataclasses

Lesson 6: object-oriented Python without the fear: classes, __init__ and self, dunder methods, inheritance versus composition, and modern dataclasses, with an inventory project in the playground.

Cover image for A Practical Introduction to LLMs and RAG in Python, and Where to Go Next

3 weeks ago 90

Python AI

A Practical Introduction to LLMs and RAG in Python, and Where to Go Next

The finale: LLMs explained with the concepts you already own, tokens and prompts, your first Claude API call from Python, a toy RAG engine in the browser, and the full map into the production LLM and MCP series.

Cover image for Working with Text and Data in Python: Regex, JSON, and CSV

3 weeks ago 45

Python Programming

Working with Text and Data in Python: Regex, JSON, and CSV

Lesson 11: turn messy text into structured data: a practical regex core, JSON round trips, CSV with DictReader, and a complete validate-and-transform pipeline from CSV to clean JSON.