Linux 下安装 Python3

如下，分别安装 Python3 、pip3 、Ipython3：

[root@localhost ~]$ yum install -y epel-release
[root@localhost ~]$ yum install -y python36
[root@localhost ~]$ yum install -y python36-pip  
[root@localhost ~]$ yum install -y python36-devel
[root@localhost ~]$ pip3.6 install ipython