Installing on Amazon Linux AMI (release 2014.09)
Installing using yum. By default Amazon Linux AMI release has only AWS's yum repos, but it has EPEL (Extra Packages for Enterprise Linux) predefined but not enabled. To temporarily enable the EPEL 6 repository, use the yum command line option --enablerepo=epel.
Installing duplicity and dependencies:
sudo yum install duplicity rsync gpg python python-devel python-pip --enablerepo=epel
Insalling duply manually (latest version can be found here):