大家好,又见面了,我是你们的朋友全栈君。
centos7自带版本是python2.7
如果要用的3.0以上的版本需要手动安装,下载地址:https://www.python.org/ftp/python/
whereis python
python2.7默认安装是在 /usr/bin目录中,切换到/usr/bin/
cd /usr/bin/
ll python*
从下面的图中我们可以看到,python指向的是python2,python2指向的是python2.7,因此我们可以装个python3,然后将python指向python3,然后python2指向python2.7,那么两个版本的python就能共存了。
yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gcc make
运行了以上命令以后,就安装了编译python3所用到的相关依赖
yum -y install epel-release
yum install python-pip
pip install wget
wget https://www.python.org/ftp/python/3.6.8/Python-3.6.8.tar.xz
xz -d Python-3.6.8.tar.xz
tar -xf Python-3.6.8.tar
cd Python-3.6.8
./configure prefix=/usr/local/python3
make && make install
yum install zlib zlib
yum install zlib zlib-devel
mv /usr/bin/python /usr/bin/python.bak
ln -s /usr/local/python3/bin/python3.6 /usr/bin/python
python -V
vi /usr/bin/yum
#! /usr/bin/python2
vi /usr/libexec/urlgrabber-ext-down
#! /usr/bin/python2
python2
python
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