Use super() in classes that could be subclassed.

discord/client.py

@@ -105,6 +105,7 @@ class Client:
 
     """
     def __init__(self, *, loop=None, **options):
+        super().__init__(loop, **options)
         self.ws = None
         self.token = None
         self.gateway = None

discord/object.py

@@ -44,4 +44,5 @@ class Object:
     """
 
     def __init__(self, id):
+        super().__init__(id)
         self.id = id

discord/user.py

@@ -56,6 +56,7 @@ class User:
     __slots__ = ['name', 'id', 'discriminator', 'avatar']
 
     def __init__(self, **kwargs):
+        super().__init__(**kwargs)
         self.name = kwargs.get('username')
         self.id = kwargs.get('id')
         self.discriminator = kwargs.get('discriminator')