Ubuntu安装Python3.8

下载Python包：

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wget https://www.python.org/ftp/python/3.8.4/Python-3.8.4.tgz

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更新软件源：

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sudo apt-get update 
sudo apt-get upgrade

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安装依赖项：

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sudo apt-get install -y make build-essential libssl-dev zlib1g-dev \
       libbz2-dev libreadline-dev libsqlite3-dev wget curl llvm \
       libncurses5-dev libncursesw5-dev xz-utils tk-dev

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解压并进入解压后的文件夹：

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tar xvf Python-3.8.4.tgz
cd Python-3.8.4

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准备安装：

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./configure --enable-optimizations --with-ensurepip=install

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编译：

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make -j 8

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安装：

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sudo make altinstall

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查看版本：

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python3.8 --version

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