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  • 1、查看已安装的Python

    # 查看已安装的信息
    $ yum info python3
    # 查看python安装位置
    $ whereis python3
    

    2、卸载已安装的Python环境

    # 卸载已安装的程序
    $ yum erase python3
    # 删除所有残余文件
    $ whereis python3|xargs rm -frv
    # 查看现有的python
    $ whereis python3
    

    3、yum安装依赖环境

    $ yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel
    

    4、官网下载Python3.9.12

    $ yum -y install wget
    # 尽量使用国内镜像站点下载比较快
    $ wget https://mirrors.huaweicloud.com/python/3.9.12/Python-3.9.12.tgz
    

    5、创建安装目录

    $ tar -zxvf Python-3.9.12.tgz -C ./
    $ cd  Python-3.9.12
    $ mkdir /usr/local/python3 
    $ ./configure --prefix=/usr/local/python3.9.12
    $ make && make install
    

    6、创建软链接

    $ ln -s /usr/local/python3.9.12/bin/python3 /usr/bin/python3
    $ ln -s /usr/local/python3.9.12/bin/pip3 /usr/bin/pip3
    

    7、测试

    $ python3 -V
    Python 3.9.12
    
    $ pip3 -V
    pip 22.0.4 from /usr/local/python3.9.12/lib/python3.9/site-packages/pip (python 3.9)
    

    8、pip升级、换源

    # pip升级
    $ python3 -m pip install --upgrade pip
    # pip换源
    # 推荐使用清华的源,因为使用https协议
    $ pip3 config set global.index-url https://pypi.tuna.tsinghua.edu.cn/simple
    
    pip CentOS 7 Python Created Fri, 06 May 2022 13:11:27 +0800