replaced cur_task.join with cur_task.wait

network/__init__.py

@@ -262,7 +262,7 @@ class Server(object):
                     # saver to use time.sleep
                     time.sleep(0.1)
         cur_task = await curio.current_task()
-        await curio.ignore_after(0,cur_task.join)
+        await curio.ignore_after(0,cur_task.wait)
         # _tasks.remove(cur_task)