And before that, the next Helsinki Python is on Monday 18th August at Witted AIcorp:
August Helsinki Python meetup, with Witted AIcorp, Mon, Aug 18, 2025, 4:30 PM | Meetup
It’s currently full, but do join the waitlist, and our Discord to be the first to hear about the next one!
And another PyData Helsinki meetup, this time at Supercell on 22 September, 2025:
Welcome to our next meetup on Wednesday 22nd October, at Zalando.
We’ll have three talks this month:
Naa Ashiorkor Nortey: Python Meets the Senses: Making Sense of Complex Sensor Data
Ever wondered how machines can “smell”? In this talk, I will present how Python can help us explore patterns in data from electronic noses, sensors that detect chemicals around us. You will see how we can uncover insights, understand the effect of environmental factors, and make complex sensor readings easier to understand.
@jpakkane: Typed Python the hardest way
While Python’s dynamic typing is great, it becomes an obstacle as projects get bigger. A common solution for this is to add typing information and enforce it in CI. But what happens if you take this approach and run with it further than anyone probably should? Let’s find out!
Luca Scotton: TBA
And of course the famous HelPy quiz!
See you there!
PS Don’t forget about PyCon Finland next week!
PyData Helsinki is meeting on 11 Nov at Sofia Helsinki, for an evening sponsored by Cactos, a Finnish smart-energy company. Talks:
Olli Ruokojoki: Data-Driven Batteries: Modeling State of Charge and Health from Operational Data
Tuomas Sivula: Stochastic Models in Energy Storage Operating Environments
Quentin Salomé: 
lightning talk (title TBA)
Osvaldo Martin: ArviZ 1.0: Refactoring for flexibility, extensibility, and power
Jouni Seppänen: Python Visualisation Tools
The next PyData Helsinki meetup is on 2 Dec at Reaktor, Yliopistonkatu 4. We have one confirmed talk:
Ville Rantanen: Bottling AI
We’ll be trying something new: a panel discussion on How to Land a (Data) Job in Today’s Market. Our three panelists have interviewed hundreds of candidates for their respective companies, some specifically in data and some in software engineering.
Last time, we introduced the PyData Helsinki quiz with our own spin on the format used by our friends at Helsinki Python. The quiz will make a comeback!
Welcome to our final meetup of the year!
This time we’re wrapping things up in a relaxed pikkujoulut spirit at Beerhouse Kaisla. We’ve reserved a spacious private cabinet for our group starting at 6 PM, so feel free to drop in, grab a drink, and connect with fellow Python enthusiasts.
There are no presentations this time, just good company and end-of-year vibes. But don’t worry, we still have something fun planned: a Christmas-themed HelPy quiz kicking off at 7 PM.
Welcome to our next event as we return to the wonderful Hive Helsinki!
Wrapping chatbots by Felipe Dessoy Caraballo & Nikolai Zharkevich
Refurbishing Old PDFs for Comfortable Reading by Mikael Koponen
My year at JetBrains by @agronholm
And the famous HelPy quiz!
We’re also looking for hosts for February and beyond, please get in touch if you’d like to tell a roomful of Python experts about your company.
PyData Helsinki is happy to announce that our next meetup is at RELEX on Thursday, 26 February. This time our talks have a data-engineering theme:
Lightning talk) Lightning talk)Sign up at
PyData Helsinki is meeting on 19 March 2026 at Elisa (Ratavartijankatu 5), with talks on electricity market optimization, Delta Lake performance, and more. Sign up at
https://www.meetup.com/pydatahelsinki/events/313128987/?isFirstPublish=true
Welcome along to our next meetup on Tuesday 21st April, a Helsinki Python and PyData Helsinki collaboration, kindly hosted by TEK & ILry!
Owain Hopeaketo & Anne Granat-Jukakoski: Intro to TEK & ILry unions
Tietoala IT sector, collective agreement and the law
The famous HelPy or infamous PyDataHel quiz!
Cal Paterson: “Disregard that!” attacks
RSVP now and see you next week!
Our next meetup is next Wednesday, 20th May at ICEYE!
Our host will tell us the story of conquering space, that started with just a couple of Aalto students, and has grown into a multi-million euro business.
Our June meetup is next Wednesday, 10th June, at IQM Quantum Machines!
We’ll have a trio of quantum talks, and the famous HelPy quiz!
See you there!
And we’re now planning our schedule for the second half of the year. If your company would like to host a roomful of Python experts, please get in touch via https://helsinki-python.github.io.
PyData Helsinki is meeting on 24 June at UpCloud (Aleksanterinkatu 15b, 7th floor), with talks on NPS data analysis, multi-criteria project selection under disagreement, and lessons from CERN for data engineering. Sign up at
PyData Helsinki and Helsinki Python are hosting a summer pub night on 4 August at Thirsty Scholar, Fabianinkatu 37. No talks this time, but we’ll have the PyData quiz and a community discussion on finding sponsors and venues. Sign up:
PyData Helsinki is meeting on 12 August 2026 at Visma (Pasilan asema-aukio 1, Tripla/Pasila), with talks on survival models, Mistral LLM benchmarks, and Kalman filters in Python.