State: - pkg
    Name:      python
    Function:  latest
        Result:    False
        Comment:   An exception occurred in this state: Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.7/salt/state.py", line 1201, in call
    *cdata['args'], **cdata['kwargs'])
  File "/usr/lib/pymodules/python2.7/salt/states/pkg.py", line 518, in latest
    avail = {desired_pkgs[0]: avail}
KeyError: 0