socket: Return partially decoded peer address from .accept().

Full decoding requires implementing socket.inet_ntop().

socket/socket.py

@@ -36,6 +36,12 @@ def create_connection(addr, timeout=None, source_address=None):
 
 class socket(_socket.socket):
 
+    def accept(self):
+        s, addr = super().accept()
+        addr = _socket.sockaddr(addr)
+        # Assumes IPv4
+        return (s, addr[1:3])
+
     def bind(self, addr):
         return super().bind(_resolve_addr(addr))