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changeset 1464:28769a82a72d

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Raise a maningful exception for traits that is not ready
author Thinker K.F. Li <thinker@codemud.net>
date Sun, 17 Apr 2011 21:34:49 +0800
parents 5ff744b981fb
children a3ce8d22d163
files pyink/trait.py
diffstat 1 files changed, 5 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- a/pyink/trait.py	Sun Apr 17 21:29:16 2011 +0800
+++ b/pyink/trait.py	Sun Apr 17 21:34:49 2011 +0800
@@ -19,7 +19,11 @@
 
     def __set__(self, instance, value):
         attrname = instance._trait_attrname_map[self]
-        composite_obj = instance._trait_composite_obj
+        try:
+            composite_obj = instance._trait_composite_obj
+        except AttributeError:
+            raise RuntimeError, \
+                '%s does not finish its initialization' % (repr(instance))
         setattr(composite_obj, attrname, value)
         pass
     pass