Whitespace fixes

- strip trailing whitespace in several files
- fix some indentation (tabs vs. spaces)

alsaaudio.c

@@ -196,8 +196,8 @@ get_pcmtype(PyObject *obj)
 static bool is_value_volume_unit(long unit)
 {
 	if (unit == VOLUME_UNITS_PERCENTAGE ||
-	    unit == VOLUME_UNITS_RAW ||
-	    unit == VOLUME_UNITS_DB) {
+		unit == VOLUME_UNITS_RAW ||
+		unit == VOLUME_UNITS_DB) {
 		return true;
 	}
 	return false;

mixertest.py

@@ -73,7 +73,7 @@ def show_mixer(name, kwargs):
     volumes_dB = mixer.getvolume(units=alsaaudio.VOLUME_UNITS_DB)
     for i in range(len(volumes)):
         print("Channel %i volume: %i%% (%.1f dB)" % (i, volumes[i], volumes_dB[i] / 100.0))
-        
+
     try:
         mutes = mixer.getmute()
         for i in range(len(mutes)):
@@ -113,7 +113,7 @@ def set_mixer(name, args, kwargs):
             mixer.setmute(1, channel)
         else:
             mixer.setmute(0, channel)
-        
+
     elif args in ['rec','unrec']:
         # Enable/disable recording
         if args == 'rec':

setup.py

@@ -29,12 +29,12 @@ if __name__ == '__main__':
             'License :: OSI Approved :: Python Software Foundation License',
             'Operating System :: POSIX :: Linux',
             'Programming Language :: Python :: 2',
-            'Programming Language :: Python :: 3',    
+            'Programming Language :: Python :: 3',
             'Topic :: Multimedia :: Sound/Audio',
             'Topic :: Multimedia :: Sound/Audio :: Mixers',
             'Topic :: Multimedia :: Sound/Audio :: Players',
             'Topic :: Multimedia :: Sound/Audio :: Capture/Recording',
             ],
-        ext_modules=[Extension('alsaaudio',['alsaaudio.c'], 
+        ext_modules=[Extension('alsaaudio',['alsaaudio.c'],
                                libraries=['asound'])]
     )

test.py

@@ -20,7 +20,7 @@ PCMMethods = [
 ]
 
 PCMDeprecatedMethods = [
-	('setchannels', (2,)), 
+	('setchannels', (2,)),
 	('setrate', (44100,)),
 	('setformat', (alsaaudio.PCM_FORMAT_S8,)),
 	('setperiodsize', (320,))
@@ -49,10 +49,10 @@ class MixerTest(unittest.TestCase):
 
 	def testMixer(self):
 		"""Open the default Mixers and the Mixers on every card"""
-		
+
 		for c in alsaaudio.card_indexes():
 			mixers = alsaaudio.mixers(cardindex=c)
-			
+
 			for m in mixers:
 				mixer = alsaaudio.Mixer(m, cardindex=c)
 				mixer.close()
@@ -73,7 +73,7 @@ class MixerTest(unittest.TestCase):
 		mixer.close()
 
 	def testMixerClose(self):
-		"""Run common Mixer methods on a closed object and verify it raises an 
+		"""Run common Mixer methods on a closed object and verify it raises an
 		error"""
 
 		mixers = alsaaudio.mixers()
@@ -133,7 +133,7 @@ class PCMTest(unittest.TestCase):
 				pcm = alsaaudio.PCM(card='default')
 			except alsaaudio.ALSAAudioError:
 				pass
-				
+
 			# Verify we got a DepreciationWarning
 			self.assertEqual(len(w), 1, "PCM(card='default') expected a warning" )
 			self.assertTrue(issubclass(w[-1].category, DeprecationWarning), "PCM(card='default') expected a DeprecationWarning")