import wmi
c = wmi.WMI()
wql = "SELECT StatusCode FROM Win32_PingStatus WHERE Address = '127.0.0.1'"

for i in c.query(wql):
  if i.StatusCode:
    print 'offline'
  else:
    print 'online'

instance of Win32_PingStatus
{
  Address = "127.0.0.1";
  BufferSize = 32;
  NoFragmentation = FALSE;
  RecordRoute = 0;
  ResolveAddressNames = FALSE;
  SourceRoute = "";
  SourceRouteType = 0;
  StatusCode = 0;
  Timeout = 1000;
  TimestampRoute = 0;
  TimeToLive = 128;
  TypeofService = 128;
};