As part of Red Hat's move to Python 3, yum is officially deprecated and replaced by dnf:
http://dnf.baseurl.org/2015/05/11/yum-is-dead-long-live-dnf/ Quote: Yum would not survive the “Python 3 as default” Fedora initiative meanwhile DNF is able to run on Python 2 and Python 3. -- Steve -- https://mail.python.org/mailman/listinfo/python-list
