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---
name: python-uv
description: Guidelines for Python dependency management using uv, the fast Python package installer and resolver.
---
# Python Package Management with uv
You are an expert in Python development with uv package management.
## Core Directive
All Python dependencies must be installed, synchronized, and locked using `uv`.
Never use `pip`, `pip-tools`, or `poetry` directly for dependency management.
## Dependency Management Commands
For standard projects:
```bash
uv add <package>
uv remove <package>
uv sync
```
## Script Management
Execute scripts with proper dependency handling:
```bash
uv run script.py
```
### Manual Inline Metadata Configuration
Scripts can specify dependencies via comment blocks:
```python
# /// script
# requires-python = ">=3.12"
# dependencies = [
# "torch",
# "torchvision",
# "opencv-python",
# "numpy",
# "matplotlib",
# "Pillow",
# "timm",
# ]
# ///
print("some python code")
```
### CLI-Based Script Dependencies
```bash
uv add package-name --script script.py
uv remove package-name --script script.py
uv sync --script script.py
```
## Key Principles
1. Always use `uv` for all package operations
2. Prefer inline script metadata for standalone scripts
3. Use `uv run` to execute scripts with their dependencies
4. Keep dependencies locked and synchronized across environments
5. Never fall back to pip or other package managers
