Slots use tuples instead now.

discord/channel.py

@@ -353,7 +353,7 @@ class PrivateChannel(Hashable):
         :attr:`ChannelType.group` then this is always ``None``.
     """
 
-    __slots__ = ['id', 'recipients', 'type', 'owner', 'icon', 'name', 'me', '_state']
+    __slots__ = ('id', 'recipients', 'type', 'owner', 'icon', 'name', 'me', '_state')
 
     def __init__(self, *, me, state, data):
         self._state = state

discord/colour.py

@@ -50,7 +50,7 @@ class Colour:
         The raw integer colour value.
     """
 
-    __slots__ = [ 'value' ]
+    __slots__ = ('value',)
 
     def __init__(self, value):
         self.value = value

discord/ext/commands/cooldowns.py

@@ -35,7 +35,7 @@ class BucketType(enum.Enum):
     channel = 3
 
 class Cooldown:
-    __slots__ = ['rate', 'per', 'type', '_window', '_tokens', '_last']
+    __slots__ = ('rate', 'per', 'type', '_window', '_tokens', '_last')
 
     def __init__(self, rate, per, type):
         self.rate = int(rate)

discord/game.py

@@ -51,7 +51,7 @@ class Game:
         The type of game being played. 1 indicates "Streaming".
     """
 
-    __slots__ = ['name', 'type', 'url']
+    __slots__ = ('name', 'type', 'url')
 
     def __init__(self, **kwargs):
         self.name = kwargs.get('name')

discord/mixins.py

@@ -25,7 +25,7 @@ DEALINGS IN THE SOFTWARE.
 """
 
 class EqualityComparable:
-    __slots__ = []
+    __slots__ = ()
 
     def __eq__(self, other):
         return isinstance(other, self.__class__) and other.id == self.id
@@ -36,7 +36,7 @@ class EqualityComparable:
         return True
 
 class Hashable(EqualityComparable):
-    __slots__ = []
+    __slots__ = ()
 
     def __hash__(self):
         return hash(self.id)

discord/permissions.py

@@ -67,7 +67,7 @@ class Permissions:
         permissions via the properties rather than using this raw value.
     """
 
-    __slots__ = [ 'value' ]
+    __slots__ = ('value',)
     def __init__(self, permissions=0, **kwargs):
         self.value = permissions
 

discord/user.py

@@ -58,7 +58,7 @@ class User:
         Specifies if the user is a bot account.
     """
 
-    __slots__ = ['name', 'id', 'discriminator', 'avatar', 'bot', '_state']
+    __slots__ = ('name', 'id', 'discriminator', 'avatar', 'bot', '_state')
 
     def __init__(self, *, state, data):
         self._state = state