[Zope3-checkins] SVN: Zope3/trunk/src/zope/schema/_field.py Changed choice fields to verify that a verify that

[Jim Fulton]

Log message for revision 30874:
  Changed choice fields to verify that a verify that
  a vocabulary object provides IBaseVocabulary, rather than
  IVocabulary.  IBaseVocabulary is all that is absolutely needed
  to specifu a field, although more would be needed for an 
  input widget.
  

Changed:
  U   Zope3/trunk/src/zope/schema/_field.py

-=-
Modified: Zope3/trunk/src/zope/schema/_field.py
===================================================================
--- Zope3/trunk/src/zope/schema/_field.py	2005-06-21 10:28:32 UTC (rev 30873)
+++ Zope3/trunk/src/zope/schema/_field.py	2005-06-21 10:28:34 UTC (rev 30874)
@@ -33,7 +33,7 @@
 from zope.schema.interfaces import IChoice, ITuple, IList, ISet, IDict
 from zope.schema.interfaces import IPassword, IObject, IDate, ITimedelta
 from zope.schema.interfaces import IURI, IId, IFromUnicode
-from zope.schema.interfaces import ISource, IVocabulary
+from zope.schema.interfaces import ISource, IBaseVocabulary
 
 from zope.schema.interfaces import ValidationError, InvalidValue
 from zope.schema.interfaces import WrongType, WrongContainedType, NotUnique
@@ -184,7 +184,7 @@
         """Initialize object."""
         if vocabulary is not None:
             assert (isinstance(vocabulary, basestring)
-                    or IVocabulary.providedBy(vocabulary))
+                    or IBaseVocabulary.providedBy(vocabulary))
             assert source is None, (
                 "You cannot specify both source and vocabulary.")
         elif source is not None: