uv

1# uv (Python Package Manager)
2 
3`uv` is a fast Python package manager used by Science Skills to run their Python
4CLI scripts. Many skills depend on `uv` being installed and on
5PATH.
6 
7Ensure `uv` is available before running any skill that depends on it.
8 
9## Setup
10 
111.  Check if `uv` is already available: `uv --version` (or `& uv --version` in
12    PowerShell). If this succeeds, `uv` is ready — skip the remaining steps.
132.  Check whether `uv` is installed at its default location but not on PATH:
14 
15    -   **Unix/macOS**: `"$HOME/.local/bin/uv" --version`
16    -   **Windows (PowerShell)**: `& "$HOME\.local\bin\uv.exe" --version`
17 
18    If either succeeds, skip to step 4.
19 
203.  If uv is not installed do these steps in order:
21 
22    
23    (a) Tell the user that uv is a tool for creating a consistent and reliable
24        Python environment used for running the Science Skills, and that you
25        need to install it now.
26 
27    (b) Install `uv`:
28 
29        -   **Unix/macOS**: `curl -LsSf https://astral.sh/uv/install.sh | sh`
30        -   **Windows (PowerShell)**: `powershell -ExecutionPolicy ByPass -c
31            "irm https://astral.sh/uv/install.ps1 | iex"`
32 
33    
34 
354.  Add `uv` to PATH and verify (run as a single command):
36 
37    -   **Unix/macOS**: `export PATH="$HOME/.local/bin:$PATH" && uv --version`
38    -   **Windows (PowerShell)**: `$env:PATH = "$HOME\.local\bin;" + $env:PATH;
39        uv --version`
40 
41After setup, bare `uv` commands should work without repeating the export.