sudo ppa-purge -s debian.sur5r.net -o i3_dists_yakkety -p universe
Updating packages lists
PPA to be removed: i3_dists_yakkety universe
Package revert list generated:
 i3/yakkety i3-wm/yakkety i3lock/yakkety i3status/yakkety
libanyevent-i3-perl/yakkety suckless-tools/yakkety sur5r-keyring/yakkety

Updating packages lists
Reading package lists... Done
Building dependency tree
Reading state information... Done
i3lock is already the newest version (2.8-1).
i3lock set to manually installed.
libanyevent-i3-perl is already the newest version (0.16-1).
libanyevent-i3-perl set to manually installed.
suckless-tools is already the newest version (42-2).
suckless-tools set to manually installed.
i3 is already the newest version (4.13-1~~yakkety1).
i3-wm is already the newest version (4.13-1~~yakkety1).
i3-wm set to manually installed.
i3status is already the newest version (2.10-3~~yakkety1).
i3status set to manually installed.
Selected version '4.13-1~~yakkety1' (debian.sur5r.net [i386]) for 'i3'
Selected version '4.13-1~~yakkety1' (debian.sur5r.net [i386]) for 'i3-wm'
Selected version '2.8-1' (Ubuntu:16.10/yakkety, debian.sur5r.net [i386]) for 'i3lock'
Selected version '2.10-3~~yakkety1' (debian.sur5r.net [i386]) for 'i3status'
Selected version '0.16-1' (Ubuntu:16.10/yakkety, debian.sur5r.net [all]) for 'libanyevent-i3-perl'
Selected version '42-2' (Ubuntu:16.10/yakkety, debian.sur5r.net [i386]) for 'suckless-tools'
Selected version '2017.01.02' (debian.sur5r.net [all]) for 'sur5r-keyring'
The following packages will be upgraded:
  sur5r-keyring
1 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.
Need to get 2,940 B of archives.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1 http://debian.sur5r.net/i3 yakkety/universe i386 sur5r-keyring all 2017.01.02 [2,940 B]
Fetched 2,940 B in 0s (8,742 B/s)
(Reading database ... 213053 files and directories currently installed.)
Preparing to unpack .../sur5r-keyring_2017.01.02_all.deb ...
Unpacking sur5r-keyring (2017.01.02) over (2015.12.29) ...
Setting up sur5r-keyring (2017.01.02) ...
Installing new version of config file /etc/apt/trusted.gpg.d/sur5r-keyring-2015.gpg ...
PPA purged successfully