After discovering a dependency installation bottleneck, we decided to try out Astral uv – the new pip drop-in replacement written in Rust.

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Streamlit significantly improved app load times by switching from pip to the uv package manager, reducing the average deployment time by 55%. The uv package manager, developed in Rust, outperforms pip through parallelization and more efficient metadata handling. This change benefits all Streamlit Community Cloud users, enhancing productivity and reducing wait times during cold deployments. Open source collaboration was key to achieving these improvements.

pip vs. uv Python package manager: How Streamlit sped up app load times by 55%

Discovering the need for faster app load times

What makes pip so slow? The tradeoff between stability and speed

<p>More on that here <a href="https://dly.to/poW6O5DMR7r" target="_blank" rel="noopener nofollow">https://dly.to/poW6O5DMR7r</a></p>
