cat /etc/redhat-release
sudo rpm -Uvh http://mirrors.kernel.org/fedora-epel/6/x86_64/epel-release-6-8.noarch.rpm
yum repolist
yum install duplicity
To get this to install on CentOS 8 x64, I had to do the following.
sudo dnf --enablerepo=PowerTools install python3-httplib2
sudo yum install epel-release
sudo yum install python3-PyDrive
sudo yum install duplicity
Strangely enough, I also had to add
python-setuptools
now that I wanted to install duplicity 0.7.12