sudo yum install centos-release-scl
sudo yum install rh-python36
python --version #2.7.5
scl enable rh-python36 bashpython --version #3.6.3
参考：https://linuxize.com/post/how-to-install-python-3-on-centos-7/
原文：https://www.cnblogs.com/wincai/p/10518222.html