[root@docker ~]# python
Python 3.6.8 (default, Apr 19 2020, 23:57:12)[GCC 4.8.5 20150623 (Red Hat 4.8.5-39)] on linux
Type "help", "copyright", "credits" or "license"formore information.
>>>
root@docker ~]# python
Python 2.7.5 (default, Aug 7 2019, 00:51:29)[GCC 4.8.5 20150623 (Red Hat 4.8.5-39)] on linux2
Type "help", "copyright", "credits" or "license"formore information.
>>>