from within the following one-line .py script returns '1': return(context.propertysheets.common.history.hasProperty('recent')) when changed to: return(context.propertysheets.common.history.getProperty('recent'))'', the result is an attribute error, with the following traceback: Traceback (innermost last): File /usr/local/zope/2.3.3/lib/python/ZPublisher/Publish.py, line 223, in publish_module File /usr/local/zope/2.3.3/lib/python/ZPublisher/Publish.py, line 187, in publish File /usr/local/zope/2.3.3/lib/python/Zope/__init__.py, line 221, in zpublisher_exception_hook (Object: Traversable) File /usr/local/zope/2.3.3/lib/python/ZPublisher/Publish.py, line 171, in publish File /usr/local/zope/2.3.3/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: test) File /usr/local/zope/2.3.3/lib/python/ZPublisher/Publish.py, line 112, in call_object (Object: test) File /usr/local/zope/2.3.3/lib/python/Shared/DC/Scripts/Bindings.py, line 324, in __call__ (Object: test) File /usr/local/zope/2.3.3/lib/python/Shared/DC/Scripts/Bindings.py, line 354, in _bindAndExec (Object: test) File /usr/local/zope/2.3.3/lib/python/Products/PythonScripts/PythonScript.py, line 336, in _exec (Object: test) (Info: ({'script': <PythonScript instance at 8a0a080>, 'context': <ZClassMethodsSheet instance at 8a845a0>, 'container': <ZClassMethodsSheet instance at 8a845a0>, 'traverse_subpath': []}, (), {}, None)) File Script (Python), line 2, in test (Object: <lambda>) File /usr/local/zope/2.3.3/lib/python/OFS/PropertySheets.py, line 224, in getProperty (Object: Traversable) File /usr/local/zope/2.3.3/lib/python/ZClasses/Property.py, line 139, in v_self (Object: Traversable) AttributeError: _zclass_ thanks again, Danny ============================== Dieter Maurer wrote:

Danny Morgan writes:

...

for some reason, I can get some propertysheet information, but not others:

with 'history' being a property sheet of a ZClass,

These work: return(context.propertysheets.history.propertyMap())

return(context.propertysheets.history.getPropertyType('recent'))

But not this:

return(context.propertysheets.history.getProperty('recent'))

Any clues will be appreciated You forget to give us enough clues to help you:

Error Type, Error Value and traceback, if "does not work" means an exception

precise error description, if "does not work" means something else.

In your case, I can expect that "context" does not have the property "recent". Then, "getProperty" will return "None". ZPublisher and your brower will behave strange when they see the "None".

Dieter