walker: PEP8

walker.py

@@ -3,12 +3,10 @@ import mutagen
 import threading
 import logging
 
-from sqlalchemy.orm import Session
-
 from model import Recording
-from utils import pairwise
 from collector import Paths
 
+
 class Walker(threading.Thread):
     def __init__(self, session_fac, sourcedir):
         super().__init__(target=self)
@@ -31,12 +29,14 @@ class Walker(threading.Thread):
                     self.log.info('Unknown file type: {}'.format(filepath))
                     continue
                 except Exception as err:
-                    self.log.error('Unexpected exception: {}, Path: {}'.format(err, filepath))
+                    self.log.error(
+                        'Unexpected exception: {}, Path: {}'.format(err,
+                                                                    filepath))
                     continue
                 if mut is not None:
                     mbid = self.get_mbid(mut)
                 if mbid is not None and mbid not in self._mbids:
-                    Paths.put((mbid,os.path.abspath(filepath)))
+                    Paths.put((mbid, os.path.abspath(filepath)))
                     self._mbids.add(mbid)
 
     def get_mbid(self, mut):
@@ -54,6 +54,6 @@ class Walker(threading.Thread):
                 if mut[key][0].dataformat == mutagen.mp4.AtomDataType.UTF8:
                     return mut[key][0].decode('utf8')
                 else:
-                    raise Exception('MP4 could not be parsed correctly. Dataformat is not UTF8')
+                    raise Exception('MP4 could not be parsed correctly. ' +
+                                    'Dataformat is not UTF8')
                     return None
-