In this quiz, you’ll test your understanding of How to Use Ollama to Run Large Language Models Locally. By working through this quiz, you’ll revisit how to install Ollama, pull and manage models, chat with local LLMs from your terminal, and connect them to AI coding tools. Running models locally mea...

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 Creating and Modifying PDF Files in Python. By working through this quiz, you’ll practice reading, extracting, and modifying PDFs using the pypdf library. You’ll also review how to write new PDFs, concatenate and merge files, crop pages, and encrypt or...

In this quiz, you’ll test your understanding of Threading in Python. By working through this quiz, you’ll revisit how to create and manage threads, use ThreadPoolExecutor, prevent race conditions with locks, and build producer-consumer pipelines with the queue module. You can also review the written...

Python is an excellent choice for working with Application Programming Interfaces (APIs), allowing you to efficiently consume and interact with them. By using the Requests library, you can easily fetch data from APIs that communicate using HTTP, such as REST, SOAP, or GraphQL APIs. This video course...

In this quiz, you’ll test your understanding of Python Descriptors. By working through this quiz, you’ll revisit the descriptor protocol, how .__get__() and .__set__() control attribute access, and how to implement read only descriptors. You’ll also explore data vs. non-data descriptors, attribute l...

After years of community requests, Python is finally getting frozendict. The Steering Council accepted PEP 814 in February, bringing an immutable, hashable dictionary as a built-in type in Python 3.15. It’s one of those additions that feels overdue, and the frozenset-to-set analogy makes it immediat...

In this quiz, you’ll test your understanding of Python SQL Libraries. Work through this quiz to connect to databases with Python, interact with SQLite, MySQL, and PostgreSQL, run SQL queries, and write scripts that work across databases. Reinforce your practical skills for building Python apps backe...

In this quiz, you’ll test your understanding of Pydantic AI: Build Type-Safe LLM Agents in Python. You’ll revisit what Pydantic AI is, how to specify a model provider, how to return structured outputs using Pydantic models, how to register and select tools, how dependency injection works, and what t...

In this quiz, you’ll test your understanding of Python stacks, queues, and priority queues. You’ll review LIFO and FIFO behavior, enqueue and dequeue operations, and how deques work. You’ll implement a queue with collections.deque and learn how priority queues order elements. You’ll also see how que...

One of the quickest ways to call multiple AI models from a single Python script is to use OpenRouter’s API, which acts as a unified routing layer between your code and multiple AI providers. By the end of this guide, you’ll access models from several providers through one unified API, as shown in th...

Python’s special __init__.py file marks a directory as a regular Python package and allows you to import its modules. This file runs automatically the first time you import its containing package. You can use it to initialize package-level variables, define functions or classes, and structure the pa...

The YData Profiling package generates an exploratory data analysis (EDA) report with a few lines of code. The report provides dataset and column-level analysis, including plots and summary statistics to help you quickly understand your dataset. These reports can be exported to HTML or JSON so you ca...

Do you have complex logic and unpredictable dependencies that make it hard to write reliable tests? How can you use Python's mock object library to improve your tests? Christopher Trudeau is back on the show this week with another batch of PyCoder's Weekly articles and projects. [ Improve Your Pytho...

Running Python scripts is essential for executing your code. You can run Python scripts from the command line using python script.py, directly by making files executable with shebangs on Unix systems, or through IDEs and code editors. Python also supports interactive execution through the standard R...

FastAPI is a web framework for building APIs with Python. It leverages standard Python type hints to provide automatic validation, serialization, and interactive documentation. When you’re deciding between Python web frameworks, FastAPI stands out for its speed, developer experience, and built-in fe...

Python’s for loop allows you to iterate over the items in a collection, such as lists, tuples, strings, and dictionaries. The for loop syntax declares a loop variable that takes each item from the collection in each iteration. This loop is ideal for repeatedly executing a block of code on each item ...

How can you move your MCP tools beyond plain text? How do you add interactive UI components directly inside chat conversations? This week on the show, Den Delimarsky from Anthropic joins us to discuss MCP Apps and interactive UIs in MCP. [ Improve Your Python With 🐍 Python Tricks 💌 – Get a short & s...

To learn how to install Python on your system, you can follow a few straightforward steps. First, check if Python is already installed by opening a command-line interface and typing python --version or python3 --version. You can install Python on Windows using the official installer from Python.org ...

Writing clear, consistent docstrings in Python helps others understand your code’s purpose, parameters, and outputs. In this video course, you’ll learn about best practices, standard formats, and common pitfalls to avoid, ensuring your documentation is accessible to users and tools alike. By the end...

TinyDB is a Python implementation of a NoSQL, document-oriented database. Unlike a traditional relational database, which stores records across multiple linked tables, a document-oriented database stores its information as separate documents in a key-value structure. The keys are similar to the fiel...

Would you like to learn how to work with LLMs locally on your own computer? How do you integrate your Python projects with a local model? 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...

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...

When you’re writing robust code, tests are essential for verifying that your application logic is correct, reliable, and efficient. However, the value of your tests depends on how well they demonstrate these qualities. Obstacles such as complex logic and unpredictable dependencies can make writing v...

Last month brought exciting performance news for Python! The Python 3.15 alphas showed JIT compiler speed gains of up to 7–8% on some platforms, while pandas released version 3.0, delivering the most significant performance improvements in years. The Python Software Foundation also received consider...

What are ways to improve how you're using GitHub? How can you collaborate more effectively and improve your technical writing? This week on the show, Adam Johnson is back to talk about his new book, "Boost Your GitHub DX: Tame the Octocat and Elevate Your Productivity". [ Improve Your Python With 🐍 ...

This video course will teach you how to use Gemini CLI to bring Google’s AI-powered coding assistance directly into your terminal. After you authenticate with your Google account, this tool will be ready to help you analyze code, identify bugs, and suggest fixes—all without leaving your familiar dev...

How do you create automated tests to check your code for degraded performance as data sizes increase? What are the new features in pandas 3.0? 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 💌 ...

In Python, a callable is any object that you can call using a pair of parentheses and, optionally, a series of arguments. Functions, classes, and methods are all common examples of callables in Python. Besides these, you can also create custom classes that produce callable instances. To do this, you...

If you haven't visited the Real Python website lately, then it's time to check out a great batch of updates on realpython.com! Dan Bader returns to the show this week to discuss improvements to the site and more ways to learn Python. [ Improve Your Python With 🐍 Python Tricks 💌 – Get a short & sweet...