List of videos

EuroPython 2022 - What transitioning from male to female taught me about leadership - presented by Ivett Ördög [Wicklow Hall 1 on 2022-07-15] I’ve been struggling with gender dysphoria (a debilitating sense of disconnect from the gender assigned to someone at birth) for decades, but it took me until not so long ago to realize what it was, and how it could be treated. Nothing has been the same since. Transitioning and the events leading up to it changed my life, and the experiences I had during my transition changed me as a person, and as a leader. It’s hard for me to open up about this period in my life, not just because it comes with tremendous vulnerability, not just because it’s very personal, but also because it has been the hardest few months in my life. The decisions I faced were far more consequential and way harder to grapple than any decisions I had to make as a leader or any time during my professional career. However I feel that other people — people who will never go through anything like I did — can learn from my story a lot exactly because it has been a very unusual and difficult problem to solve." This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License http://creativecommons.org/licenses/by-nc-sa/4.0/

EuroPython 2022 - EuroPython 2022 Closing Session [The Auditorium on 2022-07-15] See you at EuroPython 2023! This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License http://creativecommons.org/licenses/by-nc-sa/4.0/

EuroPython 2022 - Friday Lightning Talks [The Auditorium on 2022-07-15] Signing up is on a first-come-first-served basis. The queue is reset every day in the morning. You may talk about / present (almost) everything with certain boundaries: - no promotion for products of companies, no call for 'we are hiring' (but you may name your employer). - conference announcements are limited to one minute only - one LT per person per conference policy: everyone who has not given an LT at this year's conference, yet, is ahead of you in the queue - keep it short, the shorter the presentations, the more people can give a talk See you there and have fun! This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License http://creativecommons.org/licenses/by-nc-sa/4.0/

EuroPython 2022 - Demystifying Python’s Internals: Diving into CPython by implementing a pipe operator - presented by Sebastiaan Zeeff [The Auditorium on 2022-07-15] Diving into the CPython source code can feel daunting. Whether you want to start contributing or just want to get a better understanding of Python by exploring its source code, it’s often difficult to know where to start or what you’re missing. In my talk, I will show you around the CPython source code by implementing a new operator, a pipe operator. While doing so, I will discuss core parts of the internals, such as Python’s grammar, its syntax trees, and the underlying logic that will perform the operation. By the end, you will have a good idea of the moving parts involved in core language features. I will also take you through the steps necessary to make it all work. I’ll show you how I obtained a copy of the source code, regenerated the parser and token files, and how I compiled my modified version of CPython. I will also write and run tests to help me implement my changes. This should give you a mental framework that helps you while diving into more comprehensive resources, like the excellent Python Developer’s Guide (https://devguide.python.org/). My talk is aimed at everyone who wants to explore CPython’s internals. You don’t have to be an expert in Python, although some affinity with Python helps with understanding the internals. I will also use C to implement some of the operator logic, but knowledge of C is by no means required. In short, if you’re interested in diving into the CPython source code, this talk is for you. This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License http://creativecommons.org/licenses/by-nc-sa/4.0/

EuroPython 2022 - Education Panel - presented by Chris Reina, Kelly Schuster - Paredes, Aimée Fagan, Keith Quille & Sarah-Jayne Carey [The Auditorium on 2022-07-15] Teaching Python: a panel discussion with perspectives from teachers, academics, makers and enthusiasts. Why is Python appealing in education? What tools and resources work well? What can the Python community do to help teachers & policy makers? Join us for an engaging and insightful discussion with a fascinating panel of experts, Dr Keith Quille, Kelly Schuster-Paredes, Chris Reina and Sarah-Jayne Carey. This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License http://creativecommons.org/licenses/by-nc-sa/4.0/

EuroPython 2022 - Game Development with CircuitPython - presented by Radomir Dopieralski [The Auditorium on 2022-07-15] Making games on small devices is great fun and also a great way to learn. You don't have to worry about breaking anything, and the games tend to be much simpler than on the big computers. And with CircuitPython you don't need to install anything on your computer, all you need is a text editor. But it's not easy to decide what you need exactly: what hardware to get, which libraries to use and how to actually put it all together to spend the minimum time on all that, and maximum time on the game itself? I'm going to go over the available options, their pros and cons, and show some examples to get you started. This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License http://creativecommons.org/licenses/by-nc-sa/4.0/

EuroPython 2022 - Super Search with OpenSearch and Python - presented by Laysa Uchoa [The Auditorium on 2022-07-15] OpenSearch is an open source and free document database with search and aggregation superpowers, based on Elasticsearch. This session covers how to use OpenSearch to perform both simple and advanced searches on semi-structured data such as a product database. Search is pretty useful inside applications, so we'll also discuss how to connect to OpenSearch from existing Python applications, work with data in the database, and perform search and aggregation queries from Python. This talk is recommended for Python developers whose applications are ready to gain some search superpowers. This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License http://creativecommons.org/licenses/by-nc-sa/4.0/

EuroPython 2022 - `typing.Protocol`: type hints as Guido intended - presented by Luciano Ramalho [The Auditorium on 2022-07-15] Duck typing and static typing are not opposites. Go is a successful statically checked language with support for duck typing through interfaces that work like `typing.Protocol` does. A `Protocol` subclass defines an interface that past and future classes can implement without any coupling to the interface: they simply provide the required methods. That's statically checked duck typing: a powerful combination! In this talk we'll get back to basics looking at how duck typing is used in Python since the beginning, how `__dunder__` methods leverage that idea to support what we recognize as *Pythonic* code. Then we'll see how `typing.Protocol` fills the gap in the original PEP 484—Type Hints, and finally lets us properly annotate code that leverages the flexibility and loose coupling of duck typing. Finally, we'll look at the experience of the Go community to learn what makes a good Protocol. Spoiler alert: your favorite Python ABC may not be the basis of a useful Protocol! This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License http://creativecommons.org/licenses/by-nc-sa/4.0/

EuroPython 2022 - Keynote: Multithreaded Python without the GIL - presented by Sam Gross [The Auditorium on 2022-07-15] CPython’s “Global Interpreter Lock”, or “GIL”, prevents multiple threads from executing Python code in parallel. The GIL was added to Python in 1992 together with the original support for threads in order to protect access to the interpreter’s shared state. Python supports a number of ways to enable parallelism within the constraints of the GIL, but they come with significant limitations. Imagine if you could avoid the startup time of joblib workers, the multiprocess instability of PyTorch’s DataLoaders, and the overhead of pickling data for inter-process communication. The “nogil” project aims to remove the GIL from CPython to make multithreaded Python programs more efficient, while maintaining backward compatibility and single-threaded performance. It exists as a fork, but the eventual goal is to contribute these changes upstream. This talk will cover the changes to Python to let it run efficiently without the GIL and what these changes mean for Python programmers and extension authors. This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License http://creativecommons.org/licenses/by-nc-sa/4.0/