uv --- replacement of conda + pip (python version + venv+ package version install) python版本和包管理集大成者

uv

https://docs.astral.sh/uv/

An extremely fast Python package and project manager, written in Rust.

 

Installing Trio's dependencies with a warm cache.

Highlights

• 🚀 A single tool to replace pip, pip-tools, pipx, poetry, pyenv, virtualenv, and more.
• ⚡️ 10-100x faster than pip.
• 🐍 Installs and manages Python versions.
• 🛠️ Runs and installs Python applications.
• ❇️ Runs scripts, with support for inline dependency metadata.
• 🗂️ Provides comprehensive project management, with a universal lockfile.
• 🔩 Includes a pip-compatible interface for a performance boost with a familiar CLI.
• 🏢 Supports Cargo-style workspaces for scalable projects.
• 💾 Disk-space efficient, with a global cache for dependency deduplication.
• ⏬ Installable without Rust or Python via curl or pip.
• 🖥️ Supports macOS, Linux, and Windows.

uv is backed by Astral, the creators of Ruff.

 

https://www.datacamp.com/tutorial/python-uv

What is Python UV?

UV is a modern, high-performance Python package manager and installer written in Rust. It serves as a drop-in replacement for traditional Python package management tools like pip, offering significant improvements in speed, reliability, and dependency resolution.

This tool represents a new generation of Python package managers, designed to address common pain points in the Python ecosystem such as slow installation times, dependency conflicts, and environment management complexity. UV achieves this through its innovative architecture and efficient implementation, making it 10-100 times faster than traditional package managers.

Key features that make UV stand out:

• Lightning-fast package installation and dependency resolution
• Compatible with existing Python tools and workflows
• Built-in virtual environment management
• Support for modern packaging standards
• Reliable dependency locking and reproducible environments
• Memory-efficient operation, especially for large projects

Whether working on small personal projects or managing large-scale Python applications, UV provides a robust and efficient solution for package management. In this tutorial, we will cover all essential aspects of UV so you can start using it immediately.

 

https://github.com/astral-sh/uv

Python management

uv installs Python and allows quickly switching between versions.

Install multiple Python versions:

$ uv python install 3.10 3.11 3.12
Searching for Python versions matching: Python 3.10
Searching for Python versions matching: Python 3.11
Searching for Python versions matching: Python 3.12
Installed 3 versions in 3.42s
 + cpython-3.10.14-macos-aarch64-none
 + cpython-3.11.9-macos-aarch64-none
 + cpython-3.12.4-macos-aarch64-none

 

Download Python versions as needed:

$ uv venv --python 3.12.0
Using Python 3.12.0
Creating virtual environment at: .venv
Activate with: source .venv/bin/activate

$ uv run --python pypy@3.8 -- python --version
Python 3.8.16 (a9dbdca6fc3286b0addd2240f11d97d8e8de187a, Dec 29 2022, 11:45:30)
[PyPy 7.3.11 with GCC Apple LLVM 13.1.6 (clang-1316.0.21.2.5)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>>>

 

Use a specific Python version in the current directory:

$ uv python pin pypy@3.11
Pinned `.python-version` to `pypy@3.11`

 

See the Python installation documentation to get started.

 

demo

https://github.com/browser-use/web-ui

Installation Options

Option 1: Local Installation

Read the quickstart guide or follow the steps below to get started.

Python 3.11 or higher is required.

First, we recommend using uv to setup the Python environment.

uv venv --python 3.11

 

 

and activate it with:

source .venv/bin/activate

 

Install the dependencies:

uv pip install -r requirements.txt

 

 

Then install playwright:

playwright install