ubuntu安装python3(源码安装方法)

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ubuntu安装python3(源码安装方法)

ubuntu安装Python3

（第0步）建议配置阿里镜像developer.aliyun/mirror/ubuntu

一、安装相关依赖 apt-get update && apt-get upgrade apt-get install -y build-essential checkinstall libreadline-gplv2-dev libncursesw5-dev libssl-dev libsqlite3-dev tk-dev libgdbm-dev libc6-dev libbz2-dev apt-get dist-upgrade apt-get install -y build-essential python-dev python-setuptools python-pip python-smbus apt-get install -y build-essential libncursesw5-dev libgdbm-dev libc6-dev zlib1g-dev libsqlite3-dev tk-dev libssl-dev openssl libffi-dev wget 二、源码安装 # 下载链接 wget www.python/ftp/python/3.9.8/Python-3.9.8.tgz # 解压 tar zxvf Python-3.9.8.tgz -C /usr/local cd /usr/local/Python-3.9.8 # 配置 ./configure prefix=/usr/local/python3 --enable-optimizations # 编译 make && make install 三、配置系统环境 # 删除之前的python3 whereis python #(有风险)* rm -rf 所有python3的版本（除去/usr/local/python3） # 删除之前软连接 rm -rf /usr/bin/python rm -rf /usr/bin/pip # 添加新的链接 cp /usr/local/python3/lib/libpython3.9.a /usr/lib echo "/usr/lib" > /etc/ld.so.conf.d/python3.9.conf ldconfig ln -s /usr/local/python3/bin/python3 /usr/bin/python ln -s /usr/local/python3/bin/pip3 /usr/bin/pip # 添加环境变量 vi /etc/profile # # 添加 export PATH=$PATH:/usr/local/python3/bin # source /etc/profile 四、测试 python -V pip -V pip list python -m pip install --upgrade pip

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