root@6cac7b78b6f1:/# sudo apt-get install pyside2-tools
bash: sudo: command not found
root@6cac7b78b6f1:/# apt-get install pyside2-tools
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following NEW packages will be installed:
  pyside2-tools
0 upgraded, 1 newly installed, 0 to remove and 4 not upgraded.
Need to get 122 kB of archives.
After this operation, 548 kB of additional disk space will be used.
Get:1 http://ppa.launchpad.net/thopiekar/pyside-git/ubuntu xenial/main amd64 pyside2-tools amd64 0.0.0-0~201605121616~rev98~pkg4~ubuntu16.04.1 [122 kB]
Fetched 122 kB in 0s (328 kB/s)
debconf: unable to initialize frontend: Dialog
debconf: (No usable dialog-like program is installed, so the dialog based frontend cannot be used. at /usr/share/perl5/Debconf/FrontEnd/Dialog.pm line 76, <> line 1.)
debconf: falling back to frontend: Readline
debconf: unable to initialize frontend: Readline
debconf: (Can't locate Term/ReadLine.pm in @INC (you may need to install the Term::ReadLine module) (@INC contains: /etc/perl /usr/local/lib/x86_64-linux-gnu/perl/5.22.1 /usr/local/share/perl/5.22.1 /usr/lib/x86_64-linux-gnu/perl5/5.22 /usr/share/perl5 /usr/lib/x86_64-linux-gnu/perl/5.22 /usr/share/perl/5.22 /usr/local/lib/site_perl /usr/lib/x86_64-linux-gnu/perl-base .) at /usr/share/perl5/Debconf/FrontEnd/Readline.pm line 7, <> line 1.)
debconf: falling back to frontend: Teletype
Selecting previously unselected package pyside2-tools.
(Reading database ... 16765 files and directories currently installed.)
Preparing to unpack .../pyside2-tools_0.0.0-0~201605121616~rev98~pkg4~ubuntu16.04.1_amd64.deb ...
Unpacking pyside2-tools (0.0.0-0~201605121616~rev98~pkg4~ubuntu16.04.1) ...
Setting up pyside2-tools (0.0.0-0~201605121616~rev98~pkg4~ubuntu16.04.1) ...
root@6cac7b78b6f1:/#