Tech Events in Leiden

May edition

Our monthly meetup. Talk details to be announced.

Doors open at 19:00
Talks start at 19:30

📅 Thursday, 21 May 2026 🕒 19:00 - 22:00
📍 Café De Keyzer, Kaiserstraat 2-4, Leiden (city center)
❣️ Upstairs

(english below) Vanavond gaan we aan de slag met den opensource projecten binnen de space! Wil jij werken aan onze deelnemer portal? Heb je een goed idee voor onze kiosk? Heb je een mening over hoe we dingen hosten? Kom je er vooral mee bemoeien we zien graag je merge requests tegemoet!

Naast de workshop is er ook ruimte om aan je eigen projecten te werken. Binnen Space Leiden is er onder meer een grote ruimte met werkplekken om alleen of samen met anderen verder te werken aan je project. Ook is er een houtbewerking lokaal met apparatuur voor als je meer praktisch aan de slag wilt gaan. Uiteraard staan de 3D printer en lasersnijder ook klaar voor gebruik.

Nog niet bekend bij ons? Kom gezellig langs en we leiden je graag rond om je wegwijs te maken. Heb je (vooraf) vragen? Je kunt ons bereiken via Discord en de socials.

**

Tonight we’re going to work on the open source projects within the Space! Do you want to work on our member portal? Do you have a great idea for our kiosk? Do you have an opinion on how we host things? Come and get involved — we look forward to seeing your merge requests!

In addition to the workshop, there’s also space to work on your own projects. Within Space Leiden you’ll find a large area with workstations where you can continue working on your project alone or together with others. There’s also a woodworking room equipped for those who want to get more hands‑on. Of course, the 3D printer and laser cutter are also ready for use.

Not familiar with us yet? Drop by, and we’ll be happy to give you a tour and help you get oriented. Have any questions beforehand? You can reach us via Discord or on our social media channels.

Come join our community of people interested in and working with the Python programming language. We meet up in the city of Leiden, The Netherlands. Exchange experiences and learn from others on the topic of the most popular programming language!

We meet up once every two months. The meetups are low profile, not commercial, and open to both professionals and enthusiasts.

At this meeting, we'll have these two talks:

Talk 1: Creative coding with Joy by Sudha Parimala

Joy is a creative coding library for Python that makes it easy to create graphics. In this talk, Sudha will introduce Joy and demonstrate how to use it to create interesting shapes and animations.

Talk 2: Baking Reliablity into Everyday Python by Farid Nouri Neshat

In this talk, Farid will share some stories about his experiences of trying to make something that is unreliable such as his last job’s data pipeline or the websites that kept dying by small scale DDoS to be more reliable and how to do that in particularly with Python. He will talk about practical defensive coding you can actually use at work tomorrow. He’ll go over how to protect your code from bad dependencies using strict timeouts and smart retries, and how queues and limiting concurrency to keeps your database from crashing under load. He’ll also touch on handling failures gracefully and importance of idempotency.

This will be a longer than usual talk, so where we typically have three on our meetups, this time we’ll keep it at these two!

If you would want to provide a talk youself on Python or a related topic, about a Python package you discovered or a project you've been working on, or something else; just send us a mail at talks@pythonleiden.nl

Meeting format
Our meetings will have presentations with room for discussion, and we will make sure there's also opportunity to meet and get to know your fellow group members.

About our meetups
Our talks happen in a friendly and informal setting. They are a great way to learn new things, share your knowledge, and meet other Python enthusiasts. There is always room for questions and discussion. Our presentations and talks are in English to be accessible for the large amount of non-Dutch speakers in the Python community.

Call for talks
We'd invite you to propose a talk for this or future meetings. Talks can be short or longer, they can include a live demo or a hands-on lab. It does not matter if you're not a highly experienced speaker. Meetup groups like this are great for building out your skills.

Meeting venue
Our meeting will take place at the “Technolab”, an organization that offers science education for children and teenagers. We’ll be using the big meeting room, while the people from “The Space Leiden”, a local hacker/makerspace, will also be present in the building. The Space will be open starting 19:00.
Our food sponsor Samotics is providing free pizza. If you don't care for pizza, you can also skip those and arrive at 20:00.
Our location can be tricky to find for first-timers, please check the instructions on our website here.