archipylago #12 - May 2025 at Sofokus
Turku, Finland. May 15, 18:00-20:30. Our May meetup is hosted by [Sofokus](https://www.sofokus.com/)!
**Registration opens 2.5. at 12.00**
18.00 Doors open
18.10 Welcome from Sofokus
18.20 Eemeli Aro - Locale codes for fun and profit
18.50 Break
19.10 ⚡️Lightning talk: Asko Soukka - PyCon Finland 2025
19.15 Calle Laakkonen: Type safe data validation with Pydantic
19.40 Socialising
20.30 Post-meetup discussions at Cosmic Comic Cafe
## Talks
**Eemeli Aro: Locale codes for fun and profit**
Languages on the internet are identified by locale codes: `fi`, `es-419`, `zh-Hant`, and many more. Let me show you why these matter more than you think, take you down some of their less familiar pathways, and share some of the work we're doing in defining a few that don't _quite_ exist yet, like `en-ZZ` and `zxx`.
**Calle Laakkonen: Type safe data validation with Pydantic**
Motivation: why do we want to validate our input data in the first place
Quick intro to Python type hints
Pydantic for data validation and examples
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