Fix filters.user and .chat breaking when no initial collection is passed

delivrance · delivrance · commit 093d1e0dcb15 · 2020-08-25T14:08:53.000+02:00
diff --git a/pyrogram/handlers/handler.py b/pyrogram/handlers/handler.py
@@ -30,7 +30,7 @@ def __init__(self, callback: Callable, filters: Filter = None):
         self.filters = filters
 
     async def check(self, client: "pyrogram.Client", update: Update):
-        if self.filters:
+        if callable(self.filters):
             if inspect.iscoroutinefunction(self.filters.__call__):
                 return await self.filters(client, update)
             else:
