added 'get_all' method in Album, Artist, Event, Tag, Track, User and LastfmBase classes. minor fixes.

lastfm/album.py

@@ -236,6 +236,16 @@ class Album(LastfmBase):
                   )
         a._fill_info()
         return a
+    
+    @classmethod
+    def get_all(cls, seed_album):
+        def gen():
+            for artist in Artist.get_all(seed_album.artist):
+                for album in artist.top_albums:
+                    yield album
+                    
+        return super(Album, cls).get_all(seed_album, ['name', 'artist'],
+            lambda api, hsh: gen())
         
     def _default_params(self, extra_params = {}):
         if not (self.artist and self.name):

lastfm/artist.py

@@ -369,6 +369,11 @@ class Artist(LastfmBase):
         a = Artist(api, name = data.findtext('name'))
         a._fill_info()
         return a
+    
+    @classmethod
+    def get_all(cls,seed_artist):
+        return super(Artist, cls).get_all(seed_artist, ['name'],
+            lambda api, hsh: Artist(api, **hsh).similar)
 
     def _default_params(self, extra_params = None):
         if not self.name:

lastfm/base.py

@@ -6,9 +6,32 @@ __version__ = "0.2"
 __license__ = "GNU Lesser General Public License"
 __package__ = "lastfm"
 
+from lastfm.lazylist import lazylist
+
 class LastfmBase(object):
     """Base class for all the classes in this package"""
     
+    @classmethod
+    def get_all(cls, seed, hash_attrs, spider_func):
+        if cls == LastfmBase:
+            raise NotImplementedError("the subclass must implement this method")
+        @lazylist
+        def gen(lst):
+            seen = []
+            api = seed._api
+            
+            def hash_dict(item):
+                return dict((a, getattr(item, a)) for a in hash_attrs)
+            
+            seen.append(hash_dict(seed))
+            yield seed
+            for hsh in seen:
+                for n in spider_func(api, hsh):
+                    if hash_dict(n) not in seen:
+                        seen.append(hash_dict(n))
+                        yield n
+        return gen()
+    
     def __eq__(self, other):
         raise NotImplementedError("The subclass must override this method")
     

lastfm/event.py

@@ -288,6 +288,17 @@ class Event(LastfmBase):
                      tag = data.findtext('tag')
                     )
 
+    @classmethod
+    def get_all(cls, seed_event):
+        def gen():
+            for artist in Artist.get_all(seed_event.artists[0]):
+                for event in artist.events:
+                    yield event
+        
+        return super(Event, cls).get_all(seed_event, ['id'],
+            lambda api, hsh: gen())
+
+    
     def _default_params(self, extra_params = None):
         if not self.id:
             raise InvalidParametersError("id has to be provided.")

lastfm/mixins/_cacheable.py

@@ -18,7 +18,7 @@ def cacheable(cls):
     def __new__(cls, *args, **kwds):
         args = args[1:]
         subject = None
-        if 'subject' in kwds and not cls.__name__.startswith('Weekly'):
+        if 'subject' in kwds and not 'Weekly' in cls.__name__:
             subject = kwds['subject']
             #del kwds['subject']
 

lastfm/objectcache.py

@@ -57,7 +57,7 @@ class ObjectCache(object):
                 return []
             
     def __repr__(self):
-        return "<lastfm.ObjectCache>"
+        return "<lastfm.ObjectCache: %s object(s) in cache>" % sum(self.stats.values())
 
 from weakref import WeakValueDictionary
 from lastfm.error import InvalidParametersError

lastfm/tag.py

@@ -193,6 +193,11 @@ class Tag(LastfmBase):
                 for t in data.findall('tag')
                 ]
 
+    @classmethod
+    def get_all(cls, seed_tag):
+        return super(Tag, cls).get_all(seed_tag, ['name'],
+            lambda api, hsh: Tag(api, **hsh).similar)
+    
     def _default_params(self, extra_params = None):
         if not self.name:
             raise InvalidParametersError("tag has to be provided.")

lastfm/track.py

@@ -272,6 +272,16 @@ class Track(LastfmBase):
                   )
         t._fill_info()
         return t
+    
+    @classmethod
+    def get_all(cls, seed_track):
+        def gen():
+            for artist in Artist.get_all(seed_track.artist):
+                for track in artist.top_tracks:
+                    yield track
+                    
+        return super(Track, cls).get_all(seed_track, ['name', 'artist'],
+            lambda api, hsh: gen())
 
     def _default_params(self, extra_params = None):
         if not (self.artist and self.name):

lastfm/user.py

@@ -202,7 +202,7 @@ class User(LastfmBase):
 
     @top_property("neighbours")
     def nearest_neighbour(self):
-        """nearest neightbour of the user"""
+        """nearest neighbour of the user"""
         pass
 
     @cached_property
@@ -450,7 +450,7 @@ class User(LastfmBase):
     @top_property("top_tracks")
     def top_track(self):
         """top track of the user"""
-        return (len(self.top_tracks) and self.top_tracks[0] or None)
+        pass
 
     def get_top_tags(self, limit = None):
         params = self._default_params({'method': 'user.getTopTags'})
@@ -500,8 +500,11 @@ class User(LastfmBase):
             return user
         else:
             f = friends[0]
-            user = [a for a in f.friends if a.name == user.name][0]
-            return user
+            try:
+                user = [a for a in f.friends if a.name == user.name][0]
+                return user
+            except IndexError:
+                return user
         
     @staticmethod
     def get_authenticated_user(api):
@@ -518,6 +521,11 @@ class User(LastfmBase):
         user._subscriber = (data.findtext('subscriber') == "1")
         user._stats = Stats(subject = user, playcount = data.findtext('playcount'))
         return user
+    
+    @classmethod
+    def get_all(cls,seed_user):
+        return super(User, cls).get_all(seed_user, ['name'],
+            lambda api, hsh: User(api, **hsh).neighbours)
         
     def _default_params(self, extra_params = None):
         if not self.name: