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Jon Krohn

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Jon Krohn

Python Polars: The Definitive Guide, with Jeroen Janssens and Thijs Nieuwdorp

Added on May 6, 2025 by Jon Krohn.

Today's episode on Polars is in equal parts hilarious and informative with Jeroen and Thijs, who co-authored the brand-new O'Reilly book "Python Polars: The Definitive Guide". Enjoy this one!

GUESTS

More on Dr. Jeroen Janssens:

• Senior Developer Relations Engineer at Posit PBC (iconic creators of RStudio and much more).

• Previously, was Senior Machine Learning Engineer at Xomnia.

• Wrote the invaluable O’Reilly book "Data Science at the Command Line".

• Holds a PhD in machine learning from Tilburg University.

...and on Thijs Nieuwdorp:

• Lead Data Scientist at Xomnia, the largest Dutch data and A.I. consulting company.

• Holds a degree in A.I. from Radboud University.

TARGET AUDIENCE

Today’s episode will be particularly appealing to hands-on data science, machine learning and A.I. practitioners but Jeroen and Thijs are tremendous storytellers and frankly very funny so this episode can probably be enjoyed by anyone interested in data and A.I.

TOPICS

In today’s episode, Jeroen and Thijs detail:

• Why pandas users are rapidly switching to Polars for dataframe operations in Python.

• The inside story of how O'Reilly rejected four book proposals on Polars before accepting the fifth.

• The moment when an innocuous GitHub pull request forced a complete rewrite of an entire book chapter.

• A previously secret collaboration with NVIDIA and Dell that revealed remarkable GPU acceleration benchmarks by Polars.

The SuperDataScience podcast is available on all major podcasting platforms, YouTube, and at SuperDataScience.com.

In Data Science, Interview, Podcast, SuperDataScience, YouTube Tags superdatascience, python, polars, pandas
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