Advanced Polars: Lazy Queries and Streaming Mode

Welcome! This repository contains the code for the Advanced Polars talk, first delivered at PyData Paris 2025.

Getting started

Check out the slides for an overview of the talk content and background information.

Clone the repository - mind that the data files are stored using git-lfs.

Then, install uv following the official documentation.

After, install all the dependencies with

uv sync

You're now ready to run the notebooks.

Run the main notebook with

marimo edit notebooks/polars_modes_taxi.py

Authors

This talk was prepared and presented with ❤️ by Emanuele Fabbiani and the xtream team in Italy 🇮🇹.