[uhohongu@localhost ~]$ ls -al /usr/bin/python*
lrwxrwxrwx. 1 root root     9 Sep 14  2016 /usr/bin/python3 -> python3.5
-rwxr-xr-x. 2 root root 11192 Sep 14  2016 /usr/bin/python3.5
-rwxr-xr-x. 2 root root 11192 Sep 14  2016 /usr/bin/python3.5m
[uhohongu@localhost ~]$ which python
/usr/bin/which: no python in (/sbin:/bin:/usr/sbin:/usr/bin)