wyth@server:~$ apt-cache policy python-minimal python-dev
python-minimal:
  Installed: 2.7.11-1
  Candidate: 2.7.11-1
  Version table:
 *** 2.7.11-1 500
        500 http://us.archive.ubuntu.com/ubuntu xenial/main i386 Packages
        100 /var/lib/dpkg/status
python-dev:
  Installed: (none)
  Candidate: 2.7.11-1
  Version table:
     2.7.11-1 500
        500 http://us.archive.ubuntu.com/ubuntu xenial/main i386 Packages
wyth@server:~$