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Diffstat (limited to 'python/_dbus.py')
| -rw-r--r-- | python/_dbus.py | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/python/_dbus.py b/python/_dbus.py index d52aa8fc..652d27bd 100644 --- a/python/_dbus.py +++ b/python/_dbus.py @@ -126,7 +126,9 @@ class Bus: named_service = bus_object.GetNameOwner(named_service, dbus_interface='org.freedesktop.DBus') match_rule = SignalMatchRule(signal_name, dbus_interface, named_service, path) - match_rule.add_handler(handler_function) + + if (handler_function): + match_rule.add_handler(handler_function) self._match_rule_tree.remove(match_rule) |