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Life Is Short Use 'uv'

·1 min· ·
Blog En Python
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The cover is from the official uv documentation.

Life Is Short Use uv
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An extremely fast Python package and project manager, written in Rust.

Only fast can describe uv. Once you use it, you won’t go back to poetry!

Download
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curl -LsSf https://astral.sh/uv/install.sh | sh

Usage
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Manage Virtual Environments
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Creates a virtual environment in the .venv folder

uv python pin 3.12
uv venv

# or inline command
uv venv --python 3.12

Install Packages
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Sync the dependencies from pyproject.toml to the virtual environment

uv sync

Install a package

uv add requests

pip Interface
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uv provides an interface for pip

uv pip install -r requirements.txt

FAQ
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The default ulimit setting on MacOS (default 256) is too low for the number of open file descriptors.
This may cause a Too many open files error during installation.

You can change the file descriptor limit, for example, set it to 2048:

ulimit -n 2048

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