Rename 'throwaway' variables to single underscore

Also removed unused ones

whipper/common/accurip.py

@@ -236,7 +236,7 @@ def print_report(result):
     """
     Print AccurateRip verification results.
     """
-    for i, track in enumerate(result.tracks):
+    for _, track in enumerate(result.tracks):
         status = 'rip NOT accurate'
         conf = '(not found)'
         db = 'notfound'

whipper/common/checksum.py

@@ -47,7 +47,7 @@ class CRC32Task(etask.Task):
 
     def _crc32(self):
         if not self.is_wave:
-            fd, tmpf = tempfile.mkstemp()
+            _, tmpf = tempfile.mkstemp()
 
             try:
                 subprocess.check_call(['flac', '-d', self.path, '-fo', tmpf])

whipper/common/config.py

@@ -156,7 +156,6 @@ class Config:
             section = 'drive:' + urllib.quote('%s:%s:%s' % (
                 vendor, model, release))
             self._parser.add_section(section)
-            __pychecker__ = 'no-local'
             for key in ['vendor', 'model', 'release']:
                 self._parser.set(section, key, locals()[key].strip())
 

whipper/common/drive.py

@@ -66,6 +66,6 @@ def getDeviceInfo(path):
     except ImportError:
         return None
     device = cdio.Device(path)
-    ok, vendor, model, release = device.get_hwinfo()
+    _, vendor, model, release = device.get_hwinfo()
 
     return vendor, model, release

whipper/common/program.py

@@ -259,10 +259,8 @@ class Program:
             ittoc.getAudioTracks()))
         logger.debug('MusicBrainz submit url: %r',
                      ittoc.getMusicBrainzSubmitURL())
-        ret = None
 
         metadatas = None
-        e = None
 
         for _ in range(0, 4):
             try: