From 1248636fabf44974aec83648599aaa8f094d01f5 Mon Sep 17 00:00:00 2001
From: Denis Bilenko <denis@ag-projects.com>
Date: Wed, 10 Dec 2008 15:57:49 +0600
Subject: [PATCH] Timer: delete callback and its arguments in cancel() to avoid
 holding references longer than necessary

---
 eventlet/timer.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/eventlet/timer.py b/eventlet/timer.py
index abeb868..f90c6aa 100644
--- a/eventlet/timer.py
+++ b/eventlet/timer.py
@@ -85,3 +85,7 @@ class Timer(object):
         self.cancelled = True
         self.called = True
         get_hub().timer_canceled(self)
+        try:
+            del self.tpl
+        except AttributeError:
+            pass