Return empty list when debug_info is empty string

diff --git a/jinja2/environment.py b/jinja2/environment.py
index 2a4d3d7da9c7df4f7c3b48b0bc661a3f36d6b307..f3608a636cb6ca499ed434c2d32700250ed0fcd4 100644 (file)
--- a/jinja2/environment.py
+++ b/jinja2/environment.py
@@ -1124,8 +1124,10 @@ class Template(object):
     @property
     def debug_info(self):
         """The debug info mapping."""
-        return [tuple(imap(int, x.split('='))) for x in
-                self._debug_info.split('&')]
+        if self._debug_info:
+            return [tuple(imap(int, x.split('='))) for x in
+                    self._debug_info.split('&')]
+        return []
 
     def __repr__(self):
         if self.name is None: