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安装编译依赖

sudo apt update sudo apt install-y \ build-essential \ libssl-dev \ zlib1g-dev \ libbz2-dev \ libreadline-dev \ libsqlite3-dev \ libffi-dev \ libncursesw5-dev \ xz-utils \ tk-dev \ libxml2-dev \ libxmlsec1-dev \ wget

下载并解压

cd/usr/src sudo wget https://www.python.org/ftp/python/3.7.17/Python-3.7.17.tgz sudo tar xzf Python-3.7.17.tgz cd Python-3.7.17

编译安装（不覆盖系统 Python）

sudo./configure--enable-optimizations sudo make-j$(nproc)sudo make altinstall

用它创建 venv

/usr/local/bin/python3.7-m venv yolov5_lite_venv source yolov5_lite_venv/bin/activate