Fix more pylint warnings

mopidy/__init__.py

@@ -7,7 +7,8 @@ def get_mpd_protocol_version():
     return u'0.16.0'
 
 class MopidyException(Exception):
-    def __init__(self, message):
+    def __init__(self, message, *args, **kwargs):
+        super(MopidyException, self).__init__(message, *args, **kwargs)
         self._message = message
 
     @property

mopidy/backends/gstreamer.py

@@ -104,17 +104,17 @@ class GStreamerPlaybackController(BasePlaybackController):
             return 0
 
     def destroy(self):
-        bin, self._bin = self._bin, None
+        playbin, self._bin = self._bin, None
         bus, self._bus = self._bus, None
 
         bus.disconnect(self._bus_id)
         bus.remove_signal_watch()
-        bin.get_state()
-        bin.set_state(gst.STATE_NULL)
+        playbin.get_state()
+        playbin.set_state(gst.STATE_NULL)
         bus.set_flushing(True)
 
         del bus
-        del bin
+        del playbin
 
 
 class GStreamerStoredPlaylistsController(BaseStoredPlaylistsController):

mopidy/mixers/__init__.py

@@ -1,4 +1,7 @@
 class BaseMixer(object):
+    def __init__(self, *args, **kwargs):
+        pass
+
     @property
     def volume(self):
         """

mopidy/mixers/alsa.py

@@ -8,7 +8,8 @@ class AlsaMixer(BaseMixer):
     volume.
     """
 
-    def __init__(self):
+    def __init__(self, *args, **kwargs):
+        super(AlsaMixer, self).__init__(*args, **kwargs)
         self._mixer = alsaaudio.Mixer()
 
     def _get_volume(self):

mopidy/mixers/denon.py

@@ -26,11 +26,13 @@ class DenonMixer(BaseMixer):
     - :attr:`mopidy.settings.MIXER_EXT_PORT` -- Example: ``/dev/ttyUSB0``
     """
 
-    def __init__(self, device=None):
+    def __init__(self, *args, **kwargs):
         """
         Connects using the serial specifications from Denon's RS-232 Protocol
         specification: 9600bps 8N1.
         """
+        super(DenonMixer, self).__init__(*args, **kwargs)
+        device = kwargs.get('device', None)
         self._device = device or Serial(port=MIXER_EXT_PORT, timeout=0.2)
         self._levels = ['99'] + ["%(#)02d" % {'#': v} for v in range(0, 99)]
         self._volume = 0

mopidy/mixers/dummy.py

@@ -3,7 +3,8 @@ from mopidy.mixers import BaseMixer
 class DummyMixer(BaseMixer):
     """Mixer which just stores and reports the chosen volume."""
 
-    def __init__(self):
+    def __init__(self, *args, **kwargs):
+        super(DummyMixer, self).__init__(*args, **kwargs)
         self._volume = None
 
     def _get_volume(self):

mopidy/mixers/nad.py

@@ -40,7 +40,8 @@ class NadMixer(BaseMixer):
 
     """
 
-    def __init__(self):
+    def __init__(self, *args, **kwargs):
+        super(NadMixer, self).__init__(*args, **kwargs)
         self._volume = None
         self._pipe, other_end = Pipe()
         NadTalker(pipe=other_end).start()