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Marc-Andre Lemburg

Marc-Andre Lemburg

Long time Pythonista, CEO, available as Interim CTO and Senior Software Architect, Python Core Dev, EuroPython Society Chair, Python Software Foundation founding Fellow. Website Twitter
EuroPython Blog

EuroPython 2020: Live Stream Recordings available

We’re happy to announce the public availability of the live stream recordings from EuroPython 2020. They were already available to all conference attendees since the sprint days.


EuroPython YouTube Channel

We have collected the videos in a EuroPython 2020 Live Stream playlist.

Unedited Videos

What we are releasing today are unedited videos recorded for the main track rooms and days. The poster track recordings will be added today or tomorrow.

You can use the schedule to navigate the videos. Linking to a specific time in the videos can be done by right-clicking in the video to create a URL which points to the current position:


Feel free to share interesting links on social media.

Edited Videos

Our video editing company is already busy creating the cut videos. Those should be ready in a month or two.


EuroPython 2020 Team 

EuroPython 2020: Data Science Track

We are excited to announce a complete two day data science track at EuroPython 2020 Online, happening on Thursday and Friday (July 23 - 24).

Yes, that’s starting tomorrow. Sorry for the short notice :-)


Data Science @ EuroPython 2020

The data science track is part of EuroPython 2020, so you won’t need to buy an extra ticket to attend. 

We will have a two day track featuring more than 20 keynotes, full-length talks and posters:

  • Keynotes in the Microsoft Room
  • Talks in the Parrot Room
  • Posters in the Poster Rooms

The full program is available on our data science page.

If you’d like to attend the data science track at EuroPython 2020, please register for EuroPython 2020 soon.

Dates and Registration

EuroPython 2020 will be held online from July 23-26 2020. If you want to learn more about the online setup, please check the Setup section on our website. 

After buying a ticket, please register on our Discord server, following the instructions in the order confirmation email.

You will even be able to buy tickets on the days themselves, however, please be aware that this may cause delays in your Discord signup.

Please see our website for more information.


EuroPython 2020 Team 

EuroPython 2020: Presenting our Conference Booklet

Our designer Jessica has created a beautiful conference booklet for you to use during the conference and keep as a memory afterwards. It provides all details, schedule, keynotes, sponsor listings, etc. in a single PDF.


EuroPython 2020 Conference Booklet

We’d normally give out the booklet as part of the conference bag, but since we’re running the event online, we’ve put up the PDF of the booklet instead for your to enjoy.

If you feel like there something in our program which you may benefit from or you just want to get a feeling for what a EuroPython conference is like, please consider joining the event.

Tickets still available

Even though we have surpassed the 900 tickets mark already, we still have tickets available, both in form of the paid conference & sprint tickets as well as the free sprints-only tickets.

Please head over to our registration page to book your tickets.


EuroPython 2020 Team

EuroPython 2020: Introducing our Diamond Sponsor Bloomberg

We are very pleased to have Bloomberg as Diamond Sponsor for EuroPython 2020. Without sponsors like Bloomberg, we wouldn’t be able to make the event affordable.

You will be able to visit their sponsor exhibit rooms and take the opportunity to chat with their staff to learn more about the large Python eco-system they have built internally and how they are collaborating with the Python community.

Please find below a hosted blog post from Bloomberg.


EuroPython 2020 Team

Bloomberg ❤️ Python

Bloomberg is building the world’s most trusted information network for financial professionals. Our 6,000+ engineers are dedicated to advancing and building new systems for the Bloomberg Terminal to solve complex, real-world problems. We trust our teams to choose the right technologies and programming languages for the job, and, at Bloomberg, the answer is often Python. We employ an active community of more than 2,000 Python developers who have their hands in everything from financial analytics and data science to contributing to open source technologies like Project Jupyter.


Within the company, Python is a truly community-driven effort. To make Python useful within the context of Bloomberg’s financial software, engineers across the organization contributed modules, which expose existing Bloomberg libraries and facilities to the Python language. Today, our Python Infrastructure team is responsible for supporting all of our Python engineers and providing critical infrastructure and libraries to make sure everyone across the firm has a top-notch experience programming in Python. This team provides a cross-platform Python runtime, exposes core Bloomberg libraries and facilities, and works closely with our Python Guild to empower and support our internal Python community. In addition, our Developer Experience (DevX) team works hand-in-hand with the Python Guild to create and maintain packaging and deployment tools and best practices to enhance our engineers’ productivity.

A number of our engineers are active contributors to the Python community (and regular speakers at Python conferences worldwide). At Bloomberg, you’ll find multiple PSF Fellows, a CPython core developer, as well as maintainers of numerous open source Python projects, including virtualenv and auditwheel (PyPA), tox (PyPI), mplfinance (matplotlib utilities for the visualization, and visual analysis, of financial data), and bqplot, an interactive plotting and charting library intended to be used with Jupyter notebooks and ipywidgets. We also employ two members of the Project Jupyter Steering Council, both of whom were recognized with the ACM Software System Award in 2017. One of our software engineers and data scientists has also written a book on data science, Python and Pandas. Bloomberg has also published and maintains a number of open source projects developed with Python, including attrs-strict and PowerfulSeal.

Don’t miss the talks that a couple of our Python engineers will be giving during this year’s EuroPython 2020 Online:

Bloomberg is proud to support the Python community. Not only are we corporate sponsors of the Python Software Foundation and numFOCUS, but we are also regular sponsors of conferences such as PyCon US and EuroPython, PyBay, PyGotham, SciPy. We have also hosted PyLondinium and the CPython Core Developer Sprint at our office in London, as well as Open Source Weekends and PyPA sprint events around the globe to improve Python packaging tools.


EuroPython 2020: Introducing our Keystone Sponsor Microsoft

We are excited to have Microsoft as our Keystone Sponsor for EuroPython 2020. Microsoft has been a regular sponsor of EuroPython and is a great supporter of Python in general. Thanks, Microsoft ! 

You will be able to visit their sponsor exhibit rooms and take the opportunity to chat with their staff to learn more about the Python eco-system they have created.

Please find below a hosted blog post from Microsoft.


EuroPython 2020 Team

Microsoft’s Python team loves EuroPython, including this year’s online version!

EuroPython is something we look forward to every single year. The Python community is vibrant, diverse, and inclusive, and we love that we can help make EuroPython happen and bring the community together, in a unique, online, way this year.

Python is widely used at many different teams at Microsoft, e.g. the Office team writes Machine Learning services in Python, the Bing team analyzes logs with Python, the Azure team generates documentation with Python, and our device teams build firmware with Python. Moreover, millions of our customers rely on our tools and platforms for their Python codebases. We are invested in Python for the long term, and we want to help the Python community grow as more people learn that they too can build their own software.

To help achieve that goal, we have built out great support for Python in Visual Studio Code and Python in Azure:

We are truly missing the opportunity to meet with Python developers in person this year, and we are putting all our energy into connecting virtually.

Our team will be available to chat with you on Discord throughout the EuroPython 2020 online event. See you there!

EuroPython 2020: Find a new job at the conference

We’d like to draw your attention to our job board, with plenty of job ads from our sponsors:


EuroPython 2020 Job Board

Our sponsors would love to get in touch with you, so please have a look and visit them at their sponsor exhibit channel on Discord or contact them via the links and email addresses given on the page.

Job ad emails

We will also send out job ad emails to attendees who have agreed to receiving these emails. If you are interested, please log in, go to your profile and enable the recruiting email option in the privacy section:


Note that we will not give your email addresses to sponsors, but only send out these emails on behalf of them.


EuroPython 2020 Team

EuroPython 2020: Please configure your tickets

We would like to remind you how you can configure your tickets and profiles, so that we get the right information for on-boarding you on our Discord server in the coming days and your communication preferences.

This is especially important in case you bought tickets for other people. Without having the registered on our website and assigned a ticket, we cannot on-board them to our Discord server.

Log in to the website

The first step to administer your tickets and account is to log in to the website. If you don’t have an account yet, you can register easily using email and password or Google authentication.


Please avoid creating multiple accounts, since this can easily cause confusion and merging accounts is currently not possible.

Assigning tickets to other people

If you are the buyer of the tickets, you can now assign the tickets to other people, e.g. in your company.

In order to assign tickets, the people you want to assign them to need to have an account on our system. Please tell them to register with the EuroPython website and provide you with the email address they use to register.

Once they have registered and you have the email address they used, you can then go to the ticket section and reassign the ticket:


Click on “Assign ticket” and then enter the email address of the person to assign the ticket to:


Clicking save will then transfer the ticket to the new user.

Configuring your ticket

If you have bought a ticket or have been assigned a ticket, please check the configuration of the ticket.


This will take you to a form where you can find the name as we will need it for the Discord registration, expected days of attendance and a (funny) tagline to put on the badge.

Printing your invoice

If you have bought tickets on the website, you will find the invoices for the tickets on your account page as well:


You can download the invoice in PDF format, print and save it to your records.

Configuring your EuroPython account

The website also provides a couple of other dialogs which allow you to configure your account:

The “Profile settings” allow you to edit the profile shown on the website. This is especially important for speakers, since their profiles will be public and associated with their presentations.

The “Privacy settings” dialog allows you to opt-in to recruiting emails from our sponsors (among other things):

If you happen to be looking for a new job or freelance opportunity, this is a good way to get more information from sponsors who will present in our recruiting session.


EuroPython 2020 Team

EuroPython 2020: Our keynotes

We’re happy to announce our keynote lineup for EuroPython 2020.

Guido van Rossum - Q&A

In this session, you’ll get a chance to get your questions answered by Guido van Rossum, our retired BDFL.

In order to submit a question, please use the following Google form: Guido van Rossum Q&A: Question Submission.


Siddha Ganju - 30 Golden Rules of Deep Learning Performance

“Watching paint dry is faster than training my deep learning model.”
“If only I had ten more GPUs, I could train my model in time.”
“I want to run my model on a cheap smartphone, but it’s probably too heavy and slow.”

If this sounds like you, then you might like this talk.

Exploring the landscape of training and inference, we cover a myriad of tricks that step-by-step improve the efficiency of most deep learning pipelines, reduce wasted hardware cycles, and make them cost-effective. We identify and fix inefficiencies across different parts of the pipeline, including data preparation, reading and augmentation, training, and inference.

With a data-driven approach and easy-to-replicate TensorFlow examples, finely tune the knobs of your deep learning pipeline to get the best out of your hardware. And with the money you save, demand a raise!


Naomi Ceder - Staying for the Community: Building Community in the face of Covid-19

Python communities around the world, large and small are facing loss - from the loss of in person meetups and conferences to the loss of employment and even the potential loss of health and life. As communities we are all confronting uncertainty and unanswered questions. In this talk I would like to reflect on some of those questions. What are communities doing now to preserve a sense of community in the face of this crisis? What might we do and what options will we have for coming events? How can we build and foster community and still keep everyone safe? What challenges might we all face in the future? What sources of support can we find? What are our sources of optimism and hope?


Alejandro Saucedo - Meditations on First Deployment: A Practical Guide to Responsible Development

As the impact of software increasingly reaches farther and wider, our professional responsibility as developers becomes more critical to society. The production systems we design, build and maintain often bring inherent adversities with complex technical, societal and even ethical challenges. The skillsets required to tackle these challenges require us to go beyond the algorithms, and require cross-functional collaboration that often goes beyond a single developer. In this talk we introduce intuitive and practical insights from a few of the core ethics themes in software including Privacy, Equity, Trust and Transparency. We cover their importance, the growing societal challenges, and how organisations such as The Institute for Ethical AI, The Linux Foundation, the Association for Computer Machinery, NumFocus, the IEEE and the Python Software Foundation are contributing to these critical themes through standards, policy advise and open source software initiatives. We finally will wrap up the talk with practical steps that any individual can take to get involved and contribute to some of these great open initiatives, and contribute to these critical ongoing discussions.


Jessica McKellar - Python in Prison: how open source can change a criminal justice system

The United States has the highest incarceration rate in the world, with over 2.2 million people behind bars in our prisons, jails, juvenile facilities, and detention centers.

The system is racist and ineffective, but how do we change something so big and so economically entrenched, especially as software engineers?

Let’s look at how Python classes in US prisons are transforming rehabilitation and re-entry, and talk about what we can do as individuals and as an open source community to dismantle an unjust system.

EuroPython 2020 is waiting for you

We’ve compiled a full program for the event:

Conference tickets are available on our registration page. We hope to see lots of you at the conference from July 23-26. Rest assured that we’ll make this a great event again — even within the limitations of running the conference online.


EuroPython 2020 Team

EuroPython 2020: Opening our Merchandise Shop

We’re very happy to announce our very own EuroPython merchandise shop:


EuroPython Merch Shop

Customize your conference t-shirt for EP2020

The shop is run on the Spreadshirt platform and so Spreadshirt will handle all payments, invoicing and shipping.

Since we’re running EuroPython 2020 as an online event, we will not be giving out conference bags or t-shirts this year, as we do for the in-person event. Instead, we give you the opportunity to choose among the many products we have put up in the shop, and order the color and size completely individually.

Any profit this creates will go towards the EuroPython 2021 financial aid budget, so will be put to good use.

Save 15% until July 5

Spreadshirt is giving a 15% discount on the prices until July 5, 23:59 UTC, so if you’re ordering in the next few days, you can still get your shirt in time for the conference.

Shipping worldwide

Spreadshirt is shipping to a lot of destinations worldwide.

Unfortunately, they don’t support shipping to the US, Australia, Brasil and a few other countries on their European shop system.

Since the US taxation system is too complex for us to handle at the moment, we have not created a corresponding US shop yet. We will look into this later this year.


EuroPython 2020 Team

EuroPython 2020: Schedule published

We are very excited to announce the first version of our EuroPython 2020 schedule:


EuroPython 2020 Schedule

More sessions than we ever dreamed of

After the 2nd CFP, we found that we had so many good talk submissions that we were able to open a fourth track. Together with the newly added slots for the Indian / Asian / Pacific and Americas time zones, we now have a fully packed program, with:

We are proud to have reached almost the size of our in-person event with the online version of EuroPython 2020.


Never miss a talk

All talks will be made available to the attendees as live Webinars, with easy switching between tracks, as well as online streams, which will allow rewinding to watch talks you may have missed during the day.

Conference Tickets

Conference tickets are available on our registration page. We have simplified and greatly reduced the prices for the EuroPython 2020 online edition.

As always, all proceeds from the conference will go into our grants budget, which we use to fund financial aid for the next EuroPython edition, special workshops and other European conferences and projects:

EuroPython Society Grants Program

We hope to see lots of you at the conference in July. Rest assured that we’ll make this a great event again — even within the limitations of running the conference online.


On Saturday and Sunday, we will have sprints/hackathons on a variety of topics. Registration of sprint topics has already started. If you would like to run a sprint, please add your sprint topic to the wiki page we have available for this:

EuroPython 2020 Sprints Listing

If registrations continue as they currently do, we will have a few hundred people waiting to participate in your sprint projects, so this is the perfect chance for you to promote your project and find new contributors.

Participation in the sprints is free, but does require registration. We will provide the necessary collaboration tools in form of dedicated Jitsi or Zoom virtual rooms and text channels on our Discord server.

EuroPython is your conference

EuroPython has always been a completely volunteer based effort. The organizers work hundreds of hours to make the event happen and will try very hard to create an inspiring and exciting event.

However, we can only provide the setting. You, as our attendees, are the ones who fill it with life and creativity.

We are very much looking forward to having you at the conference !


EuroPython 2020 Team