title: Not able to install pypy sandbox
body: <p>As mentioned in: <a href="https://howtoinstall.co/en/python-pypy.sandbox" rel="nofollow noreferrer">https://howtoinstall.co/en/python-pypy.sandbox</a>
  I tried the following code:</p>
  <p>sudo apt-get update and then
  sudo apt-get install python-pypy.sandbox</p>
  <p>This gives me the following output:</p>
  <p>Reading package lists... Done
  Building dependency tree<br />
  Reading state information... Done
  python-pypy.sandbox is already the newest version (5.1.2+dfsg-1~16.04).
  You might want to run 'apt --fix-broken install' to correct these.
  The following packages have unmet dependencies:
  python-pypy.sandbox : Depends: pypy-lib (= 5.1.2+dfsg-1~16.04) but it is not going to be installed
  Depends: python:any (&lt; 2.8)
  Depends: python:any (&gt;= 2.7.5-5~)
  E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).</p>