From c21a725c3de749be20f8bfb547cd3d1ffedc4b1b Mon Sep 17 00:00:00 2001
From: jtm <jtm@robot.is>
Date: Sun, 12 Feb 2012 13:03:38 +0000
Subject: [PATCH] Add assert

---
 lesscpy/plib/mixin.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lesscpy/plib/mixin.py b/lesscpy/plib/mixin.py
index 4eee24a..4c5dd29 100644
--- a/lesscpy/plib/mixin.py
+++ b/lesscpy/plib/mixin.py
@@ -93,6 +93,7 @@ class Mixin(Process):
             @param list: Replacement list
             @return: Property object
         """
+        assert(len(p._p) > 3)
         p._p[3] = args
         return p