使用uv安装python任意版本的命令详解(uv python install)
作者：skywalk8163
uv是一个超快速的Python包安装器和解析器,用Rust编写,是pip、pip-tools和virtualenv的高速替代品,这篇文章主要介绍了使用uv安装python任意版本命令(uv python install)的相关资料,需要的朋友可以参考下
使用uv安装python任意版本
先使用uv看看可以装哪些版本
输出：
uv python list cpython-3.14.0a5+freethreaded-linux-x86_64-gnu <download available> cpython-3.14.0a5-linux-x86_64-gnu <download available> cpython-3.13.2+freethreaded-linux-x86_64-gnu <download available> cpython-3.13.2-linux-x86_64-gnu <download available> cpython-3.12.9-linux-x86_64-gnu py312/bin/python3.12 cpython-3.12.9-linux-x86_64-gnu py312/bin/python3 -> python3.12 cpython-3.12.9-linux-x86_64-gnu py312/bin/python -> python3.12 cpython-3.12.9-linux-x86_64-gnu <download available> cpython-3.11.11-linux-x86_64-gnu <download available> cpython-3.10.16-linux-x86_64-gnu <download available> cpython-3.10.12-linux-x86_64-gnu /usr/bin/python3.10 cpython-3.10.12-linux-x86_64-gnu /usr/bin/python3 -> python3.10 cpython-3.10.12-linux-x86_64-gnu /bin/python3.10 cpython-3.10.12-linux-x86_64-gnu /bin/python3 -> python3.10 cpython-3.9.21-linux-x86_64-gnu <download available> cpython-3.8.20-linux-x86_64-gnu <download available> cpython-3.7.9-linux-x86_64-gnu <download available> pypy-3.11.11-linux-x86_64-gnu <download available> pypy-3.10.19-linux-x86_64-gnu <download available> pypy-3.9.19-linux-x86_64-gnu <download available> pypy-3.8.16-linux-x86_64-gnu <download available> pypy-3.7.13-linux-x86_64-gnu <download available>
安装python3.9版本
uv python install 3.9
速度有点慢...安装完成，用uv python list来看一下：
cpython-3.9.21-linux-x86_64-gnu /home/skywalk/.local/share/uv/python/cpython-3.9.21-linux-x86_64-gnu/bin/python3.9
临时添加到路径
# 临时添加路径（关闭终端后失效） export PATH="$HOME/.local/share/uv/python/cpython-3.9.21-linux-x86_64-gnu/bin:$PATH" # 验证 python --version #
好的，证明现在就是python3.9了：
python --version # Python 3.9.21
永久添加到 PATH
- 步骤：编辑
~/.bashrc、~/.zshrc或~/.bash_profile： echo 'export PATH="$HOME/.local/share/uv/python/3.10.12/bin:$PATH"' >> ~/.bashrc
执行
source ~/.bashrc生效
不行，换方法
创建python3.9虚拟环境
uv venv py39 source py39/bin/activate
还是不行
现在只能用这个方法，加参数：--break-system-packages
pip install pip -U --break-system-packages
测试的时候这样用
安装测试库
pip install -e ".[testing]" --break-system-packages
测试
pytest
调试
pip install的时候报错This Python installation is managed by uv and should not be modified.
pip install -e ".[testing]" [notice] A new release of pip is available: 24.3.1 -> 25.1.1 [notice] To update, run: pip install --upgrade pip error: externally-managed-environment × This environment is externally managed ╰─> This Python installation is managed by uv and should not be modified. note: If you believe this is a mistake, please contact your Python installation or OS distribution provider. You can override this, at the risk of breaking your Python installation or OS, by passing --break-system-packages. hint: See PEP 668 for the detailed specification.
搞不定，只好创建虚拟环境
uv venv py39 source py39/bin/activate
uv venv py39 Using CPython 3.9.21 Creating virtual environment at: py39 Activate with: source py39/bin/activate (base) skywalk@ubuntu22win:~$ source py39/bin/activate
总结
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