[Zope3-checkins] SVN: Zope3/trunk/src/zope/app/apidoc/component.py Not all classes which provides IFactory have a '_callable' attribute.

[Dmitry Vasiliev]

Log message for revision 29609:
  Not all classes which provides IFactory have a '_callable' attribute.
  

Changed:
  U   Zope3/trunk/src/zope/app/apidoc/component.py

-=-
Modified: Zope3/trunk/src/zope/app/apidoc/component.py
===================================================================
--- Zope3/trunk/src/zope/app/apidoc/component.py	2005-03-21 10:49:58 UTC (rev 29608)
+++ Zope3/trunk/src/zope/app/apidoc/component.py	2005-03-21 10:57:10 UTC (rev 29609)
@@ -190,9 +190,9 @@
 
     callable = factory
 
-    if IFactory.providedBy(factory):
+    # Usually only zope.component.factory.Factory instances have this attribute
+    if IFactory.providedBy(factory) and hasattr(factory, '_callable'):
         callable = factory._callable
-
     elif hasattr(callable, '__class__'):
         callable = callable.__class__