Mercurial > genshi > genshi-test

diff markup/template.py @ 192:cda3bdfc19ed
Expression evaluation now differentiates between undefined variables and variables that are defined but set to `None`.
author: cmlenz
date: Wed, 23 Aug 2006 17:49:14 +0000
parents: 929ef2913b87
children: 76129a79458d
--- a/markup/template.py
+++ b/markup/template.py
@@ -111,13 +111,14 @@
         """Set a variable in the current scope."""
         self.frames[0][key] = value
 
-    def get(self, key):
+    def get(self, key, default=None):
         """Get a variable's value, starting at the current scope and going
         upward.
         """
         for frame in self.frames:
             if key in frame:
                 return frame[key]
+        return default
     __getitem__ = get
 
     def push(self, data):