--- a/thirdparty/google_appengine/google/appengine/ext/admin/__init__.py	Tue Jan 20 01:12:43 2009 +0000
+++ b/thirdparty/google_appengine/google/appengine/ext/admin/__init__.py	Tue Jan 20 13:19:45 2009 +0000
@@ -777,7 +777,8 @@
       multiline = len(value) > 255 or value.find('\n') >= 0
     if not multiline:
       for sample_value in sample_values:
-        if len(sample_value) > 255 or sample_value.find('\n') >= 0:
+        if sample_value and (len(sample_value) > 255 or
+                             sample_value.find('\n') >= 0):
           multiline = True
           break
     if multiline: