env
Addendum
- Install
uv
on Linux/MacOScurl -LsSf https://astral.sh/uv/install.sh | sh
- Install
uv
on Windowspowershell -ExecutionPolicy ByPass -c "irm https://astral.sh/uv/install.ps1 | iex"
Using pip/pipx
pip install uv
pipx install uv
Main post
#!/usr/bin/env -S uv run (via) This is a really neat pattern. Start your Python script like this:
#!/usr/bin/env -S uv run
# /// script
# requires-python = ">=3.12"
# dependencies = [
# "flask==3.*",
# ]
# ///
import flask
# ...
And now if you chmod 755
it you can run it on any machine with the uv
binary installed like this: ./app.py
- and it will automatically create its own isolated environment and run itself with the correct installed dependencies and even the correctly installed Python version.
All of that from putting uv run
in the shebang line!
Code from this PR by David Laban.