Unable to install frappe bench

[root@lynux ~]# ./setup_frappe.sh
Installing for centos 6 amd64
In case you encounter an error, you can post on https://discuss.frappe.io

Adding centos mariadb repo
Installing packages for centos. This might take time…
File “/usr/bin/yum”, line 30
except KeyboardInterrupt, e:
SyntaxError: invalid syntax

@prasad_mailbox you pressed ctrl-c?

Seems to be problem in setup (it’s in yum!)