A few quick comments after glancing at the script:
Might want to suggest using fpaste instead of just paste.fedoraproject.org. You also want to fallback to calling dnf if yum doesn't exist which can happen in a future release. Consider python 3 is soon going to be the default, it might be better to make the script Python 3 compatible. Does this handle the case where a user accidentally enters something other than y or n when prompted (c.f what yum does) ?