How Narwhals is silently bringing pandas, Polars, DuckDB, PyArrow, and more together

🔊 Recorded at PyCon DE & PyData 2025, April 25, 2025
https://2025.pycon.de/program/CPCNRZ/

🎓 If you were writing a data science tool in 2015, you'd have ensured it supported pandas and then called it a day.

Speakers:
Marco Gorelli

Description:
If you were writing a data science tool in 2015, you'd have ensured it supported pandas and then called it a day.
But it's not 2015 anymore, we've fast-forwarded to 2025. If you write a tool which only supports pandas, users will demand support for Polars, PyArrow, DuckDB, and so many other libraries that you'll feel like giving up.
Learn about how Narwhals allows you to write dataframe-agnostic tools which can support all of the above, with zero dependencies, low overhead, static typing, and st

⭐️ About PyCon DE & PyData:
The PyCon DE & PyData conference unite the Python, AI, and data science communities, offering a unique platform for collaboration and innovation. The PyCon DE & PyData 2025 conference, provided an exceptional experience, fostering deeper connections within the Python community while showcasing advancements in AI and data science. Attendees enjoyed a diverse and engaging program, solidifying the event as a highlight for Python and AI enthusiasts nationwide.

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Links:
• Conference website: http://pycon.de
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The conference is organized by
• Python Softwareverband e.V.: http://pysv.org
• NumFOCUS Inc.: http://numfocus.org
• Pioneers Hub gemeinnützige GmbH: http://pioneershub.org


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Acknowledgements:
Special thanks to all the volunteers and sponsors who made this event possible.

About:
Python Softwareverband e.V.:
PySV is a non-profit that promotes the use and development of Python in Germany through events, education, and advocacy, fostering an open Python community.

NumFOCUS Inc.
supports open-source scientific computing by providing financial and logistical support to key projects like NumPy and Jupyter, promoting sustainable development and collaboration.

Pioneers Hub gemeinnützige GmbH:
is a non-profit fostering innovation in AI and tech by connecting experts and promoting knowledge exchange through events and collaborative initiatives.
www.pydata.org

PyData is an educational program of NumFOCUS, a 501(c)3 non-profit organization in the United States. PyData provides a forum for the international community of users and developers of data analysis tools to share ideas and learn from each other. The global PyData network promotes discussion of best practices, new approaches, and emerging technologies for data management, processing, analytics, and visualization. PyData communities approach data science using many languages, including (but not limited to) Python, Julia, and R.