docs/whitespace and change register_listener to a class method

NEWS

@@ -1,5 +1,9 @@
 1.0b8
 -----
+* Added a new plugin event, "imported_album", which is called every
+  time an album is added to the library. (Thanks, Lugoues!)
+* A new plugin method, register_listener, is an imperative alternative
+  to the @listen decorator (Thanks again, Lugoues!)
 * In path formats, $albumartist now falls back to $artist (as well as
   the other way around).
 * Fix adding individual tracks in BPD.

beets/plugins.py

@@ -64,12 +64,16 @@ class BeetsPlugin(object):
         pass
 
     listeners = None
-	 
-    def register_listener(self, event, func):
-        if self.listeners is None:
-            self.listeners = defaultdict(list)
-        self.listeners[event].append(func)
-		  
+
+    @classmethod
+    def register_listener(cls, event, func):
+        """Add a function as a listener for the specified event. (An
+        imperative alternative to the @listen decorator.)
+        """
+        if cls.listeners is None:
+            cls.listeners = defaultdict(list)
+        cls.listeners[event].append(func)
+
     @classmethod
     def listen(cls, event):
         """Decorator that adds a function as an event handler for the

beets/ui/commands.py

@@ -532,9 +532,9 @@ def apply_choices(lib, copy, write, art, delete, progress):
             # Write the database after each album.
             lib.save()
 
-				#annouce that we added an album
+            # Announce that we've added an album.
             plugins.send('album_imported', album=albuminfo)
-				
+
             # Finally, delete old files.
             if copy and delete:
                 new_paths = [os.path.realpath(item.path) for item in items]
@@ -565,10 +565,10 @@ def simple_import(lib, paths, copy, delete, resume):
 
         album = lib.add_album(items, True)
         lib.save()            
-		  
-		  #annouce that we added an album
+
+        # Announce that we added an album.
         plugins.send('album_imported', album=album)
-		  
+
         if resume is not False:
             progress_set(toppath, path)