Fixed a bug caused by new filter()

diff --git a/babel/messages/catalog.py b/babel/messages/catalog.py
index 1777585a346cde803d227878ac49f9145ccb3024..120469fd2e65915cd7dcf3ce25a4fa64bdfcca61 100644 (file)
--- a/babel/messages/catalog.py
+++ b/babel/messages/catalog.py
@@ -187,7 +187,7 @@ class Message(object):
         ids = self.id
         if not isinstance(ids, (list, tuple)):
             ids = [ids]
-        return bool(filter(None, [PYTHON_FORMAT.search(id) for id in ids]))
+        return any(PYTHON_FORMAT.search(id) for id in ids)
 
 
 class TranslationError(Exception):