❯ sudo salt-master -l debug                                                                                                                                                                                                             ⏎
Traceback (most recent call last):
  File "/usr/local/bin/salt-master", line 6, in <module>
    from salt.scripts import salt_master
  File "/usr/local/lib/python2.7/dist-packages/salt/scripts.py", line 17, in <module>
    import salt.cli
  File "/usr/local/lib/python2.7/dist-packages/salt/cli/__init__.py", line 13, in <module>
    import salt.cli.caller
ImportError: No module named cli.caller