EuroSciPy 2025 was hosted in Kraków, Poland. Despite having attended SciPyConf 2022, SciPyConf 2023, and SciPyConf 2024, it was my first time in this European event.

This post covers my impressions and opinions about the event.

About Kraków

Kraków is an outstanding city. Despite being in the European Union, Poland has its own currency, the Złoty. The European Union imposes some minimum requirements for its members and, as of today, Poland does not meet these. Read Poland and the Euro for more information about the topic.

Kraków states, in my opinion, as a highly developed city. Its streets are clean and its people behave in a way I have not seen in other parts of Western Europe. I hope to visit this city again in the future, hopefully, with a bit more of time to enjoy all its places.

About the conference

Similarly to SciPyConf, EuroSciPy focuses on showcasing the latest scientific advances in the Python ecosystem. Among all the topics presented, two got most of the attention:

• The Python array API standard
• The Python units and quantities API standard

The array standard has already been adopted by various libraries. This has eased their connections and linkage. However, the units and quantities standard is very new.

As of today, the Python user can choose between astropy.units, pint, and unyt for managing units and quantities. However, each one of them operates in a different way. Hopefully, we’ll see more progress in the topic of standarizing how libraries implement and operate with units and quantities.

What I liked

The event was hosted in the Faculty of Computer Science, in particular in the Informatyka building. This building has the perfect space for the conference. Its elevated rooms ensure you can have a perfect view of the speaker. The audio quality in the sessions was great.

What I didn’t like

It is well known that the Python community aims to feel every individual welcome, accepted, and safe. No matter your race, religion, culture, sexual orientation, and others, the Python community will accept you as long as you stick to the code of conduct of the event.

That being said, it is not a secret that every keynote over the last years has focused on non-code related topics. From transgender speeches to feminism, keynotes have become the worst part of conferences these days.

Keynotes must remain politically neutral and free of propaganda.

Note that this situation does not only apply to EuroSciPy but also to SciPy conference and many other country specific conferences.

Last thing I would ask to improve is the review process. Again, this repeats in every Python conference I attended. Unpopular but interesting topics get discarded in favor of GPU and AI/ML ones. I would love to see more Python core topics or, at least, advanced topics about the main scientific libraries of the ecosystem.