coentos7安装python3

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 libffi-devel

[root@localhost ~]# cd /usr/local/src/
[root@localhost src]# wget https://www.python.org/ftp/python/3.7.0/Python-3.7.0.tar.xz

[root@localhost src]# tar -xvJf Python-3.7.0.tar.xz 

[root@localhost src]# cd Python-3.7.0/
[root@localhost Python-3.7.0]# mkdir /usr/local/python3
[root@localhost Python-3.7.0]# ./configure --prefix=/usr/local/python3

[root@localhost python3]# ln -s /usr/local/python3/bin/python3 /usr/local/bin/python3
[root@localhost python3]# ln -s /usr/local/python3/bin/pip3 /usr/local/bin/pip3

[root@localhost home]# python3 -V
Python 3.7.0