CentOS7 升级 python3 过程及注意

@检查当前的版本

    #python -V

 

@安装python3.7

    #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

    #yum -y install gcc kernel-devel kenel-headers make bzip2

    #yum -y install readline-devel libffi-devel

    #yum -y install e2fsprogs-devel uuid-devel libuuid-devel

    #yum install libffi-devel -y

    #mkdir /usr/local/python3

    #wget https://www.python.org/ftp/python/3.7.1/Python-3.7.1.tgz

    #tar zxf Python-3.7.1.tgz

    #cd Python-3.7.1

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

    #make && make install

    #cd /usr/bin

    #sudo mv python python.bak

    #sudo mv pip pip.bak

    #ln -s /usr/local/python3/bin/python3.7 /usr/bin/python

    #ln -s  /usr/local/python3/bin/pip3.7 /usr/bin/pip

    #python -V

 

@修改yum配置文件

    # sudo vi /usr/bin/yum

    # #!/usr/bin/python 改为 #!/usr/bin/python2.7

 

@修改urlgrabber配置文件

    #sudo vi /usr/libexec/urlgrabber-ext-down

    #把头部的python改成python2.7