tree 603ca1a8ff058dd8106b4af5f097fcf093aca905
parent a26695c99078f1ff0874b91224686f45fe50f2aa
author June Tate-Gans <jtgans@google.com> 1549915276 -0800
committer June Tate-Gans <jtgans@google.com> 1549915300 -0800

main: Add in some dependency checks

This prevents nasty tracebacks from firing if we can't load paramiko or
zeroconf.

Change-Id: If075ab46af462a18552a6da8ba7ffdfe1f3e7f63