Use result_to_list for all list endpoints, to ensure empty lists are handled correctly

trovebox/api/api_activity.py

@@ -1,6 +1,7 @@
 """
 api_activity.py : Trovebox Activity API Classes
 """
+from trovebox import http
 from trovebox.errors import TroveboxError
 from trovebox.objects.activity import Activity
 
@@ -12,6 +13,7 @@ class ApiActivities(object):
     def list(self, **kwds):
         """ Returns a list of Activity objects """
         activities = self._client.get("/activities/list.json", **kwds)["result"]
+        activities = http.result_to_list(activities)
         return [Activity(self._client, activity) for activity in activities]
 
     def purge(self, **kwds):

trovebox/api/api_album.py

@@ -2,6 +2,7 @@
 api_album.py : Trovebox Album API Classes
 """
 from trovebox.objects.album import Album
+from trovebox import http
 
 class ApiAlbums(object):
     """ Definitions of /albums/ API endpoints """
@@ -10,8 +11,9 @@ class ApiAlbums(object):
 
     def list(self, **kwds):
         """ Return a list of Album objects """
-        results = self._client.get("/albums/list.json", **kwds)["result"]
-        return [Album(self._client, album) for album in results]
+        albums = self._client.get("/albums/list.json", **kwds)["result"]
+        albums = http.result_to_list(albums)
+        return [Album(self._client, album) for album in albums]
 
 class ApiAlbum(object):
     """ Definitions of /album/ API endpoints """

trovebox/api/api_photo.py

@@ -3,8 +3,8 @@ api_photo.py : Trovebox Photo API Classes
 """
 import base64
 
-from trovebox.errors import TroveboxError
 from trovebox import http
+from trovebox.errors import TroveboxError
 from trovebox.objects.photo import Photo
 
 def extract_ids(photos):

trovebox/api/api_tag.py

@@ -1,6 +1,7 @@
 """
 api_tag.py : Trovebox Tag API Classes
 """
+from trovebox import http
 from trovebox.objects.tag import Tag
 
 class ApiTags(object):
@@ -10,8 +11,9 @@ class ApiTags(object):
 
     def list(self, **kwds):
         """ Returns a list of Tag objects """
-        results = self._client.get("/tags/list.json", **kwds)["result"]
-        return [Tag(self._client, tag) for tag in results]
+        tags = self._client.get("/tags/list.json", **kwds)["result"]
+        tags = http.result_to_list(tags)
+        return [Tag(self._client, tag) for tag in tags]
 
 class ApiTag(object):
     """ Definitions of /tag/ API endpoints """