So based on a git grep -E "^#\!/usr/bin/python([^3]|$)" in puppet.git I filtered through for stuff that looked Cloud VPS-related. It might be incomplete.
Ideally this stuff would be done this year.
modules/base/files/labs/notify_maintainers.py:#!/usr/bin/python modules/base/files/labs/puppet_alert.py:#!/usr/bin/python modules/dnsrecursor/files/labs-ip-alias-dump.py:#!/usr/bin/python modules/graphite/files/archive-instances:#!/usr/bin/python modules/icinga/files/check_wikitech_static_version.py:#!/usr/bin/python modules/ldap/files/scripts/ssh-key-ldap-lookup:#!/usr/bin/python modules/openstack/files/clientpackages/designatemakedomain.py:#!/usr/bin/python modules/openstack/files/designate/dns-floating-ip-updater.py:#!/usr/bin/python modules/openstack/files/mitaka/admin_scripts/wmcs-cold-migrate.py:#!/usr/bin/python modules/openstack/files/mitaka/admin_scripts/wmcs-cold-nova-migrate.py:#!/usr/bin/python modules/openstack/files/mitaka/admin_scripts/wmcs-live-migrate.py:#!/usr/bin/python modules/openstack/files/mitaka/admin_scripts/wmcs-makedomain.py:#!/usr/bin/python modules/openstack/files/mitaka/admin_scripts/wmcs-novastats/wmcs-novastats-alltrusty.py:#!/usr/bin/python modules/openstack/files/mitaka/admin_scripts/wmcs-novastats/wmcs-novastats-capacity.py:#!/usr/bin/python modules/openstack/files/mitaka/admin_scripts/wmcs-novastats/wmcs-novastats-dnsleaks.py:#!/usr/bin/python modules/openstack/files/mitaka/admin_scripts/wmcs-novastats/wmcs-novastats-flavorreport.py:#!/usr/bin/python modules/openstack/files/mitaka/admin_scripts/wmcs-novastats/wmcs-novastats-imagestats.py:#!/usr/bin/python modules/openstack/files/mitaka/admin_scripts/wmcs-novastats/wmcs-novastats-proxyleaks.py:#!/usr/bin/python modules/openstack/files/mitaka/admin_scripts/wmcs-novastats/wmcs-novastats-puppetleaks.py:#!/usr/bin/python modules/openstack/files/mitaka/admin_scripts/wmcs-region-migrate-quotas.py:#!/usr/bin/python modules/openstack/files/mitaka/admin_scripts/wmcs-region-migrate-security-groups.py:#!/usr/bin/python modules/openstack/files/mitaka/admin_scripts/wmcs-region-migrate.py:#!/usr/bin/python modules/openstack/files/monitor/keystone/check_keystone_projects.py:#!/usr/bin/python modules/openstack/files/monitor/keystone/check_keystone_roles.py:#!/usr/bin/python modules/openstack/files/monitor/wmcs-spreadcheck.py:#!/usr/bin/python modules/openstack/files/puppet/master/instance-info-dumper.py:#!/usr/bin/python modules/openstack/files/util/wmcs-updateproxies.py:#!/usr/bin/python modules/openstack/files/util/wmcs-webproxy.py:#!/usr/bin/python modules/openstack/files/util/wmcs-wikireplica-dns.py:#!/usr/bin/python modules/puppetmaster/files/validatelabsfqdn.py:#!/usr/bin/python modules/shinken/files/shinkengen:#!/usr/bin/python2