【python】--python2与py

发布时间:2019-09-27 07:09:13编辑:auto阅读(1626)

    python3 和python 2 共存



    1.安装基础的系统包

    (因为我是在docker下启动的Linux, p_w_picpath中很多包没有装)

    yum install -y hostname  wget  tar passwd gcc lrzsz telnet passwd tar man vim make net-tools sudo  vixie-cron crontabs gcc gcc-c++ autoconf


    2.安装python的依赖包

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


    3.下载

    #国外地址

    wget https://www.python.org/ftp/python/3.4.3/Python-3.4.3.tgz


    #国内地址

    wget http://mirrors.sohu.com/python/3.4.3/Python-3.4.3.tgz


    4.安装

    tar -zxvf Python-3.4.3.tgz

    cd Python-3.4.3

    ./configure --prefix=/usr/local/python3

    make

    make altinstall


    echo /usr/local/lib >> /etc/ld.so.conf.d/local.conf

    ldconfig

    ln -s /usr/local/python3/bin/python3.4 /usr/bin/python3


    5.安装后在

    python程序的执行文件:/usr/local/bin/python3.4 

    python应用程序目录:/usr/local/lib/python3.4 

    pip的执行文件:/usr/local/bin/pip3.4



    6.如果要安装其他包

    python3 -m pip install  包名 


    安装后在

    /usr/local/lib/python3.4/site-packages


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