Handle python-dbus not installed

old-commit-hash: 25054cdc05

common/hardware_tici.py

@@ -25,7 +25,11 @@ MM_MODEM_ACCESS_TECHNOLOGY_LTE = 1 << 14
 
 class Tici(HardwareBase):
   def __init__(self):
+    # TODO: remove when dbus is installed everywhere
+    try:
       import dbus  # pylint: disable=import-error
+    except ImportError:
+      return
 
     self.bus = dbus.SystemBus()
     self.nm = self.bus.get_object(NM, '/org/freedesktop/NetworkManager')

selfdrive/loggerd/uploader.py

@@ -69,7 +69,10 @@ def clear_locks(root):
       cloudlog.exception("clear_locks failed")
 
 def is_on_wifi():
+  try:
     return HARDWARE.get_network_type() == NetworkType.wifi
+  except Exception:
+    return False
 
 class Uploader():
   def __init__(self, dongle_id, root):