一、下载python3.6.8的源码压缩文件(下载源码目录随意，安装路径推荐/usr/local/python3)

1.创建安装路径
    mkdir -p /usr/local/python3
2.下载python源码
    #操作路径 /home/worker/${name}
    wget https://www.python/ftp/python/3.6.8/Python-3.6.8.tgz
3.解压源码压缩包
    #操作路径 /home/worker/${name}
    tar -zxvf Python-3.6.8.tgz

二、安装python3.6.8

1.编译安装环境
    #操作路径 /home/worker/${name}/Python-3.6.8/
    ./configure --prefix=/usr/local/python3
2.进行安装python3.6.8
    #操作路径 /home/worker/${name}/Python-3.6.8
    make && make install
3.创建软连接
    ln -s /usr/local/python3/bin/python3 /usr/bin/python3
    ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3
4.验证是否安装成功
    python3 -V 输出下方信息，证明成功了 Python 3.6.8
注意：出现错误:【zipimport.ZipImportError: can't decompress data】
    yum -y install zlib* 安装zlib相关依赖包
    重新make && make install

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安装python3.6.8步骤