How can you avoid schema problems in your Polars data pipeline when adding new columns? How can you quickly examine a GitHub user's profile to decide how much to invest in their contributions? Christopher Trudeau is back on the show this week with another batch of PyCoder's Weekly articles and proje...

In this quiz, you’ll test your understanding of Build a Tic-Tac-Toe Game With Python and Tkinter. By working through this quiz, you’ll revisit how to design game logic with Python classes, lay out and update Tkinter widgets, and wire up button clicks to a handler through the event loop. [ Improve Yo...

In this quiz, you’ll test what you learned in the video course Context Managers and Using Python’s with Statement. By working through this quiz, you’ll revisit how the with statement runs setup and teardown for you, how to use standard-library context managers like open(), and how to write your own ...

The fastest way to use the Claude API in Python is to install anthropic, set your API key, and call client.messages.create(). You’ll have a working response in under a minute: Example of Using the Claude API in Python Claude is Anthropic’s large language model, accessible via a clean REST API with a...

In this quiz, you’ll test your knowledge of How to Use the Claude API in Python. By working through this quiz, you’ll revisit how to install the anthropic SDK, send prompts to Claude with client.messages.create(), shape responses with a system parameter, and return structured JSON output using a sch...

The Zen of Python is a collection of 19 aphorisms that capture the guiding principles behind Python’s design. You can display them anytime by running import this in a Python REPL. Tim Peters wrote them in 1999 as a joke, but they became an iconic part of Python culture that was even formalized as PE...

In this quiz, you’ll test your understanding of Absolute vs Relative Imports in Python. By working through this quiz, you’ll revisit how Python’s import system resolves modules, the differences between absolute and relative imports, and the PEP 8 conventions for styling import statements. [ Improve ...

In this quiz, you’ll test your understanding of Tapping Into the Zen of Python. By working through this quiz, you’ll revisit the origins of the poem, the meaning of several aphorisms, and the inside jokes hidden throughout. The questions explore how the principles apply in practice and when it’s oka...

Python’s built-in functions are predefined functions you can use anywhere in your code without any imports. They handle common tasks across math, data type creation, iterable processing, and input and output. Knowing which ones to reach for makes your code shorter and more Pythonic. In this tutorial...

What are the limitations of using a file-based agent workflow? Why do massive context windows tend to collapse? This week on the show, Mikiko Bazeley from MongoDB joins us to discuss agentic architecture and context engineering. [ Improve Your Python With 🐍 Python Tricks 💌 – Get a short & sweet Pyth...

In this quiz, you’ll test your understanding of Python’s Array: Working With Numeric Data Efficiently. By working through this quiz, you’ll revisit the differences between Python’s array module and the built-in list, the meaning of type codes, how to create and manipulate arrays as mutable sequences...

In this quiz, you’ll test your understanding of Python Metaclasses. Metaclasses sit behind every class you write in Python, and they’re one of the language’s deeper object-oriented concepts. By working through this quiz, you’ll revisit how classes are themselves objects, how type creates them, and h...

In this quiz, you’ll test your understanding of Cursor vs Windsurf: Which AI Code Editor Is Best for Python? By working through these questions, you’ll revisit how the two editors differ across code completion, agentic multi-file editing, and debugging. You’ll also reconnect with the audit points wo...

OpenCode is an open-source AI coding agent that runs in your terminal and lets you analyze and refactor a Python project through conversational commands. In this guide, you’ll install it on your system, set it up with a free Google Gemini API key, and learn the basics of how to use it in your daily ...

Pydantic AI is a Python framework for building LLM agents that return validated, structured outputs using Pydantic models. Instead of parsing raw strings from LLMs, you get type-safe objects with automatic validation. If you’ve used FastAPI or Pydantic before, then you’ll recognize the familiar patt...

In this quiz, you’ll test your understanding of Building Type-Safe LLM Agents With Pydantic AI. By working through this quiz, you’ll revisit how Pydantic AI returns structured outputs from LLMs, how validation retries improve reliability, how tools and function calling work, how dependency injection...

In this quiz, you’ll test your understanding of The LEGB Rule & Understanding Python Scope. By working through this quiz, you’ll revisit how Python resolves names using the LEGB rule, what the local, enclosing, global, and built-in scopes look like in practice, and how the global and nonlocal statem...

Flattening a list in Python involves converting a nested list structure into a single, one-dimensional list. A common approach to flatten a list of lists is to use a for loop to iterate through each sublist. Then you can add each item to a new list with the .extend() method or the augmented concaten...

In this quiz, you’ll test your understanding of how to flatten a list in Python. You’ll write code and answer questions to revisit the concept of converting a multidimensional list, such as a matrix, into a one-dimensional list. [ Improve Your Python With 🐍 Python Tricks 💌 – Get a short & sweet Pyth...

What if you could build charts in Python by describing what your data means, instead of scripting every visual detail? Christopher Trudeau is back on the show this week with another batch of PyCoder's Weekly articles and projects. [ Improve Your Python With 🐍 Python Tricks 💌 – Get a short & sweet Py...

In this quiz, you’ll test your understanding of Memory Management in Python. By working through this quiz, you’ll revisit how Python handles memory allocation and freeing, the role of the Global Interpreter Lock, and how CPython organizes memory using arenas, pools, and blocks. Give it a shot! [ Imp...

In this quiz, you’ll test your knowledge of Qt Designer and Python: Build Your GUI Applications Faster. By working through this quiz, you’ll revisit how Qt Designer turns visual designs into .ui files, how layout managers control widget geometry, how signals and slots connect user actions to your co...

The Python ChatterBot library lets you build a self-learning command-line chatbot with just a few lines of code. You’ll set up a basic bot, clean real WhatsApp conversation data with regular expressions, and train your chatbot on that custom corpus. You’ll also plug in a local LLM through Ollama to ...

In this quiz, you’ll test your understanding of Python & APIs: A Winning Combo for Reading Public Data. By working through this quiz, you’ll revisit how APIs send requests and responses, how the requests library works, what status codes and headers mean, and how to handle authentication, pagination,...

In this quiz, you’ll test your understanding of How to Use OpenCode for AI-Assisted Python Coding. By working through these questions, you’ll revisit how to install OpenCode, connect it to an AI provider, configure project context with AGENTS.md, and take advantage of features like mid-session model...

After watching this video course, you’ll be able to use Codex CLI to add features to a Python project directly from your terminal. Codex CLI is an AI-powered coding assistant that runs inside your terminal. It understands your project structure, reads your files, and proposes multi-file changes usin...

In this quiz, you’ll test your understanding of Python Application Layouts: A Reference. By working through this quiz, you’ll revisit how to structure one-off scripts, installable packages, larger applications with internal packages, and web projects built with Django or Flask. A dependable starting...

April gave Python developers a new governing body. PEP 772 was accepted on April 16, creating a dedicated Python Packaging Council that will make binding decisions about packaging standards and tools. After years of informal coordination through the Python Packaging Authority (PyPA), the packaging c...

In this quiz, you’ll test your understanding of the tutorial Data Management With Python, SQLite, and SQLAlchemy. By working through this quiz, you’ll revisit how Python, SQLite, and SQLAlchemy work together to give your programs reliable data storage. You’ll also check your grasp of primary and for...

In this quiz, you’ll revisit the core concepts covered in the Revisit Python Fundamentals learning path. The 15 questions span variables, data types, operators, expressions, keywords, and exceptions, giving you a way to check that you understood the most important ideas. Take your time and revisit a...