See you at the conference!

We are pleased to announce that PyCon Sweden 2021 full program! The conference will be streamed for free through our YouTube channel. More details will be announced later.


This year, we have the following invited keynote sessions:

Bridging Productivity, Portability, and Performance with Data-Centric Python

By Tal Ben-Nun, senior researcher with the Scalable Parallel Computing Laboratory, ETH Zurich

Python is rapidly becoming the language of choice for scientific computing, due to its high productivity and vast software ecosystem. As an interpreted language, however, it is challenging to produce high-performance code from arbitrary programs.

In this talk we will present the Data-Centric (DaCe) parallel programming framework (, a representation and workflow that enables taking (restricted) Python code and generating high-performance programs that run on multi-core CPUs, accelerators such as GPUs and FPGAs, and clusters thereof. The core concept in DaCe is an intermediate representation and interface that separates the definition of "what" to compute from "how" to compute it efficiently and map it onto hardware. The representation can then be transformed automatically, programmatically, or interactively, without modifying the original Python code. To aid code optimization, DaCe provides programmers with visual transformation and editing tools, integrated in the Visual Studio Code IDE, which allow for manual fine-tuning optimizations. DaCe successfully accelerates several frameworks and applications, including NumPy, deep learning with PyTorch/ONNX, numerical weather prediction systems, and supercomputer-scale quantum transport simulations. The generated data-centric programs are on par and outperform the existing state-of-the-art.

The talk will highlight the restrictions and challenges when converting scientific code into a data-centric representation, how performance engineering is facilitated with DaCe, and showcase some of the applications that use the framework.

About the speaker: Tal is a senior researcher with the Scalable Parallel Computing Laboratory at ETH Zurich, Switzerland. His research interests include designing programming models for heterogeneous architectures, large-scale machine learning for scientific computing, and learnable representations of code.

The best way to learn Python - for the absolute beginners and improvers

By Cheuk Ting Ho, Developer Relations Lead at TerminusDB, Python Software Foundation Fellow, organizer of EuroPython

In the 2021 StackOverflow survey, Python remains the most wanted programming language (5 years in a row). As a Pythonista, I have been asked many times about what is the best way to learn Python. There are many resources, especially online, free or paid, that is available.

From working as a data scientist to become an open-source developer, I would like to sum up my Python learning experience to make recommendations to different groups of people. Whether you are an absolute beginner with no programming experience, a beginner with other programming language experience or a beginner in Python who wants to get better and know more about the language, you will get an idea of how to use Python at a whole new level.

About the speaker: Bio: After spending 5 years doing computational research in Physics, Cheuk has transferred her analytical and logical skills in natural science and built a career in data science. Cheuk has been a Data Scientist in various companies. To follow her passion for the tech community, now Cheuk is the Developer Relations Lead at TerminusDB. Cheuk maintains its Python client and engages with its user community daily.

Cheuk enjoys talking about Python in streaming and podcast. Cheuk has also been a guest speaker at Universities and various conferences. Cheuk also participates as the organizer for EuroPython, PyData Global and Pyjamas Conf. Believing in gender equality, Cheuk constantly organizes workshops to support Tech Diversity and Inclusion. In 2021, Cheuk has become a Python Software Foundation fellow.

Managing cloud infrastructure as code in Python

By Alexey Isavnin, senior software developer at Elisa Automate, founder of Rays of Space company

Python is a language of choice for a wide spectrum of software products nowadays. It is applied in APIs, data science models, high-performance computing, and more. But, software also needs hardware/infrastructure to run on. The good news is that you can provision and manage cloud infrastructure of any complexity without leaving the comfort of Python. In this talk, we will learn how to do exactly that while discovering the added benefits of using Python for this task. We will mainly focus on AWS but will touch other major clouds as well.

About the speaker: Alexey is a senior software developer at Elisa Automate (Finland) where he builds automation solutions for mobile networks. He also holds a Ph.D. degree in space physics and is a founder of Rays of Space company, which provides space research software for the European Space Agency and several universities. In his spare time, he develops Refereed, a web editor for scientific writing.

Not fading away: A tale about a 20-year old Python project

By Érico Andrei, Python Software Foundation Fellow, Plone Foundation Vice-President

The Plone CMS is one of the oldest, and most successful open source stories of the Python community. Created by Alex Limi and Alan Runyan in 1999 to be a better UI for Zope, the project grew to be a very stable and secure solution, used by governments, corporations and NGO's to power their public sites and intranets. The community surrounding Plone has been the key to keeping the project alive. This talk will focus on the community itself, and how meeting technical and organizational challenges it has adapted and evolved to avoid fading away.

About the speaker: After some time being a developer advocate for the Dark Side™, Érico Andrei discovered Python and improved his karma. Over the last 17 years he founded two companies, worked for many startups, helped the Brazilian government to maintain their portals using Open Source solutions, and chaired the Brazilian PyCon. Érico is also a Python Software Foundation Fellow, and current Plone Foundation Vice-President.


This edition of the conference will be held completely online and therefore we will stream PyCon Sweden 2021 directly into our YouTube channel and were all talks will be available afterwards. Links to individual talks will be posted in the schedule below (soon). The conference follows Stockholm time. If you are in a different timezone, try exporting the schedule to your calendar through iCal here!.

With our streaming platform we will be able to run multiple tracks simultaneously so that every Python enthusiast can find content matching their interest. Registration now to participate in our conference Slack channel and also to join workshops.


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PyCon Sweden is only possible with its generous sponsors:

Are you interested in sponsoring? Reach out to


We're Passionate About Python and the Community

PyCon Sweden is arranged by Python Sverige, a registered nonprofit organization (SE Org. ID 802476-3792).


Our Team

PyCon Sweden is organized by Python Sverige, and its volunteers!


Christine Winter



Anna Kazakova Lindegren

Board Member

Edwin So



Helio Loureiro



Nuo Xu

Board Member

Tamara Thornquist

Board Member


Wei Der Chien (Steven)

Board Member


Vyacheslav Olshevsky (Slavik)



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