如何在centos7下用yum安装python3
1 下载epel
sudo yum install epel-release
2.安装python3
sudo yum install python34
3.更改默认python
whereis python
python: /usr/bin/python2.7 /usr/bin/python /usr/bin/python3.4 /usr/bin/python3.4m /usr/lib/python2.7 /usr/lib/python3.4 /usr/lib64/python2.7 /usr/lib64/python3.4 /etc/python /usr/include/python2.7 /usr/include/python3.4m /usr/share/man/man1/python.1.gz cd /usr/bin/ rm /usr/bin/python ln -s /usr/bin/python3.4 usr/python/python
4.测试
python -v
Python 3.4.10 (default, Apr 8 2019, 02:17:36)