The official home of the Python Programming Language

As we close the books on PyCon US 2025, we can’t express enough gratitude to everyone who joined us in Pittsburgh, PA, and made our 9 days t...

The Python Steering Council is a 5-person elected committee that assumes a mandate to maintain the quality and stability of the Python language and CPython interpreter, improve the contributor experience, formalize and maintain a relationship between the Python core team and the PSF, establish decision making processes for Python Enhancement Proposals, seek consensus among contributors and the Python core team, and resolve decisions and disputes in decision making among the language. Presented by: Barry Warsaw Donghee Na Gregory P Smith Pablo Galindo Salgado (Steering Council member not present: Emily Morehouse)

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PyCon US 2025

You know that the @ symbol applies a decorator to a function, but what does that really mean? And how can you make your own decorators? That's what Trey Hunner's PyCon US 2025 tutorial is all about. Joining us at PyCon US 2025? Register your spot for this tutorial today via the us.pycon.org/2025/ website! More information about PyCon US 2025 tutorials and the full schedule here: https://us.pycon.org/2025/schedule/tutorials/

PyCon US 2025

All code needs a user interface. That might be an API, or a web page - but these days, many users will expect an app that they can install on their laptop, or on their phone. But how do you build a native application in Python? And do you need to build a different version of your app for every device and operating system you want to support? In this hands-on tutorial, you'll learn how you can use the BeeWare suite of tools to build a graphical user interface for your code, and deploy that code as a desktop app, and as a mobile app - all from a single Python codebase. You'll learn how to integrate third-party libraries like NumPy into your app, and how to customize the appearance of your packaged app. You'll also learn how you can access device hardware (such as cameras and GPS) in your...

Get to know the all-star lineup of PyCon US 2025 keynote speakers . They’ve graciously answered our questions, and shared some conference ad...

Get to know the all-star lineup of PyCon US 2025 keynote speakers . They’ve graciously answered our questions, and shared some conference ad...

In this tutorial, we'll discuss how to build the basic components that make up a modern digital synth from scratch! In the process, learn some DSP and audio programming concepts! By the end, you’ll be able to make your own tunes with Python! We will start with theory, then work through Jupyter notebooks both individually and as a group. This tutorial will be a lot of fun if you’re a musically inclined Python programmer. As someone interested in music, you will discover the components that make up a synthesizer by literally building & making music with it, and as someone interested in Python, you’ll learn a lot about audio programming and signal processing techniques. Joining us at PyCon US 2025? Register your spot for this tutorial today via the us.pycon.org/2025/ website! More information about PyCon US 2025 tutorials and the full schedule here: https://us.pycon.org/2025/schedule/tutorials/

Full Tutorial Title: Reimplementing the module `itertools` for fun and profit You know how to use a `for` loop in Python. But do you know HOW it works Do you know why it is that you can write `for` loops with `range`, `lists`, `strings`, `zip`, and `enumerate`? What's the machinery that makes that work? And have you noticed how `range(1)` and `range(99999999999999999)` take exactly the same time to run? There's something lazy about the built-in `range`... But what does “lazy” even mean? In the tutorial “Reimplementing the module `itertools` for fun and profit” you'll learn how to answer all of these questions, and much more, through the lens of the module `itertools`. The module `itertools` is implemented in C, but in this tutorial you'll reimplement it in pure Python! And you'll do that for two reasons. First, because it's an excellent, fun challenge...And on top of that, because it's surprisingly...