# HG changeset patch
# User cmlenz
# Date 1152639707 0
# Node ID db7c76d337aa124a829082195440e58f1763c4b2
# Parent  dd73921530e84ef67e755827c3e60205677309bd
Add back line that was accidentially left commented out in [75].

diff --git a/markup/template.py b/markup/template.py
--- a/markup/template.py
+++ b/markup/template.py
@@ -150,7 +150,7 @@
         
         If the stack is empty, an `AssertionError` is raised.
         """
-        #assert self.frames, 'Pop from empty context stack'
+        assert self.frames, 'Pop from empty context stack'
         self.frames.popleft()