安装Python3.8
1.安装依赖
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
2.下载Python3.8
wget https://www.python.org/ftp/python/3.8.0/Python-3.8.0.tgz
3.安装python3
可以先拷贝到自己常安装的文件中
cp Python-3.8.0.tgz /usr/local/python3
解压文件
tar -zxvf Python-3.8.0.tgz
4.进入目录,编译
cd Python-3.8.0
./configure --prefix=/usr/local/python3
然后
make && make install
5.建立软链接
原有的python和python2不要删,千万别删,因为原有程序需要原来python执行,比如yum
ln -s /usr/local/python3/bin/python3 /usr/bin/python3
ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3
也可以去/usr/bin目录下把原来的python软连接删了,然后执行ln -s /usr/local/python3/bin/python3 /usr/bin/python
之后就可以python -V查看
6.将bin文件引入PATH
vim ~/.bash_profile
# .bash_profile
# Get the aliases and functions
if [ -f ~/.bashrc ]; then
. ~/.bashrc
fi
#User specific environment and startup programs
PATH=$PATH:$HOME/bin:/usr/local/python3/bin
export PATH
保存退出
执行以下命令生效
# source ~/.bash_profile