Remove object base class

src/nemu/__init__.py

@@ -30,7 +30,7 @@ from nemu.interface import *
 from nemu.node import *
 
 
-class _Config(object):
+class _Config:
     """Global configuration singleton for Nemu."""
 
     def __init__(self):

src/nemu/interface.py

@@ -28,7 +28,7 @@ __all__ = ['NodeInterface', 'P2PInterface', 'ImportedInterface',
            'ImportedNodeInterface', 'Switch']
 
 
-class Interface(object):
+class Interface:
     """Just a base class for the *Interface classes: assign names and handle
     destruction."""
     _nextid = 0

src/nemu/iproute.py

@@ -207,7 +207,7 @@ class bridge(interface):
         return r
 
 
-class address(object):
+class address:
     """Class for internal use. It is mostly a data container used to easily
     pass information around; with some convenience methods. __eq__ and
     __hash__ are defined just to be able to easily find duplicated
@@ -252,7 +252,7 @@ class ipv6address(address):
         return s % (self.__module__, self.__class__.__name__,
                     self.address.__repr__(), self.prefix_len)
 
-class route(object):
+class route:
     tipes = ["unicast", "local", "broadcast", "multicast", "throw",
              "unreachable", "prohibit", "blackhole", "nat"]
 

src/nemu/node.py

@@ -35,7 +35,7 @@ from nemu.environ import *
 
 __all__ = ['Node', 'get_nodes', 'import_if']
 
-class Node(object):
+class Node:
     _nodes: MutableMapping[int, "Node"] = weakref.WeakValueDictionary()
     _nextnode = 0
     _processes: MutableMapping[int, nemu.subprocess_.Subprocess]

src/nemu/protocol.py

@@ -96,7 +96,7 @@ _proc_commands = {
 KILL_WAIT = 3  # seconds
 
 
-class Server(object):
+class Server:
     """Class that implements the communication protocol and dispatches calls
     to the required functions. Also works as the main loop for the slave
     process."""
@@ -556,7 +556,7 @@ class Server(object):
 #
 # Client-side protocol implementation.
 #
-class Client(object):
+class Client:
     """Client-side implementation of the communication protocol. Acts as a RPC
     service."""
 

src/nemu/subprocess_.py

@@ -42,7 +42,7 @@ __all__ = ['PIPE', 'STDOUT', 'Popen', 'Subprocess', 'spawn', 'wait', 'poll',
 KILL_WAIT = 3  # seconds
 
 
-class Subprocess(object):
+class Subprocess:
     """Class that allows the execution of programs inside a nemu Node. This is
     the base class for all process operations, Popen provides a more high level
     interface."""