Fix formatting to new PEP8 version (1.6.2)

PEP8 1.6.2 (2015-02-15):
- added check for breaking around a binary operator

This caused Travis to fail on "W503 line break before binary operator"

beets/util/confit.py

@@ -602,11 +602,11 @@ class Dumper(yaml.SafeDumper):
         for item_key, item_value in mapping:
             node_key = self.represent_data(item_key)
             node_value = self.represent_data(item_value)
-            if not (isinstance(node_key, yaml.ScalarNode)
-                    and not node_key.style):
+            if not (isinstance(node_key, yaml.ScalarNode) and
+                    not node_key.style):
                 best_style = False
-            if not (isinstance(node_value, yaml.ScalarNode)
-                    and not node_value.style):
+            if not (isinstance(node_value, yaml.ScalarNode) and
+                    not node_value.style):
                 best_style = False
             value.append((node_key, node_value))
         if flow_style is None:

beets/util/functemplate.py

@@ -309,8 +309,8 @@ class Parser(object):
                 # A non-special character. Skip to the next special
                 # character, treating the interstice as literal text.
                 next_pos = (
-                    self.special_char_re.search(self.string[self.pos:]).start()
-                    + self.pos
+                    self.special_char_re.search(
+                        self.string[self.pos:]).start() + self.pos
                 )
                 text_parts.append(self.string[self.pos:next_pos])
                 self.pos = next_pos

beetsplug/mpdstats.py

@@ -166,8 +166,8 @@ class MPDStats(object):
         else:
             rolling = (rating + (1.0 - rating) / 2.0)
         stable = (play_count + 1.0) / (play_count + skip_count + 2.0)
-        return (self.rating_mix * stable
-                + (1.0 - self.rating_mix) * rolling)
+        return (self.rating_mix * stable +
+                (1.0 - self.rating_mix) * rolling)
 
     def get_item(self, path):
         """Return the beets item related to path.

setup.py

@@ -82,9 +82,8 @@ setup(
         'unidecode',
         'musicbrainzngs>=0.4',
         'pyyaml',
-    ]
-    + (['colorama'] if (sys.platform == 'win32') else [])
-    + (['ordereddict'] if sys.version_info < (2, 7, 0) else []),
+    ] + (['colorama'] if (sys.platform == 'win32') else []) +
+        (['ordereddict'] if sys.version_info < (2, 7, 0) else []),
 
     tests_require=[
         'beautifulsoup4',

test/test_ui.py

@@ -968,8 +968,8 @@ class ShowChangeTest(_common.TestCase):
         self.items[0].title = u''
         self.items[0].path = u'/path/to/caf\xe9.mp3'.encode('utf8')
         msg = re.sub(r'  +', ' ', self._show_change())
-        self.assertTrue(u'caf\xe9.mp3 -> the title' in msg
-                        or u'caf.mp3 ->' in msg)
+        self.assertTrue(u'caf\xe9.mp3 -> the title' in msg or
+                        u'caf.mp3 ->' in msg)
 
 
 class PathFormatTest(_common.TestCase):