环境:当前系统已存在python2.7.5
1.先安装依赖环境
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
2.下载python3.6
wget https://www.python.org/ftp/python/3.6.4/Python-3.6.4.tgz
3.解压文件
tar -xvf Python-3.6.4.tgz
4.创建安装文件的路径
mkdir /usr/local/python3
5.编译 (进入解压好的路径下)
cd Python3.6.4
./configure --prefix=/usr/local/python3
6.安装
make
make install
7.创建新版本的软连接
7.1修改旧版本
mv /usr/bin/python /usr/bin/python_bak
7.2创建新连接
ln -s /usr/local/python3/bin/python3 /usr/bin/python
7.3检查python的版本 python -V
7.4配置完成,yum可能不可用,需设置
vim /usr/bin/yum
#!/usr/bin/python改成#!/usr/bin/python2.7 保存关闭
vim /usr/libexec/urlgrabber-ext-down
#!/usr/bin/python改成#!/usr/bin/python2.7 保存关闭
7.5配置完之后,pip3用不了,需要进一步配置(在nil-poc账户下)
vim ~/.bash_profile
修改 PATH=$PATH:$HOME/bin:/usr/local/python3/bin
保存退出,执行以下命令,让配置生效
source ~/.bash_profile
创建新的pip3软连接
ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3