From 95967b86339bfe89d124a6fa1468ab067707885e Mon Sep 17 00:00:00 2001
From: "Vgr E.Barry" <vgr255@live.ca>
Date: Mon, 15 Jun 2015 10:26:58 -0400
Subject: [PATCH] Make events.remove_listener remove empty lists as well

---
 src/events.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/events.py b/src/events.py
index ee6e8ad..e90aebe 100644
--- a/src/events.py
+++ b/src/events.py
@@ -14,6 +14,8 @@ def remove_listener(event, callback, priority = 5):
     if event in EVENT_CALLBACKS and (priority, callback) in EVENT_CALLBACKS[event]:
         EVENT_CALLBACKS[event].remove((priority, callback))
 
+    if event in EVENT_CALLBACKS and not EVENT_CALLBACKS[event]:
+        del EVENT_CALLBACKS[event]
 
 class Event:
     def __init__(self, name, data):