Re: [Zope] not allowed to access a particular tuple
William Heymann wrote at 2006-10-20 06:55 -0600: >This is an external method I wrote to make it easier to iterate over the >records returned from searching the catalog. However if I have > >yield record,item instead of yield item it says that I am not allowed to >access a particular tuple during iteration. Probably, you lack the "object permission" for one of the returned values. You will not see it in the "External Method" but when you access it in untrusted code, you get an "Unauthorized". -- Dieter ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] not allowed to access a particular tuple
On Friday 20 October 2006 07:05, Jonathan wrote: > > The 'yield' statement is not allowed within a 'try' clause (see the Python > Reference manual). > Hmm that seems strange, it works just fine in all the places I have done it, the only issue is zope not liking the returned object if it is not a single item. When it is reading over records it is raising exceptions in the calls to getObject() sometimes and on all the tests it just does not return those objects which is exactly what it should do. http://www.python.org/doc/2.4.3/ref/yield.html#l2h-510 According to those docs you can't use yield inside a try finally not a try except. > Why don't you just build a simple list (or list of tuples) and return that? > I wanted to use yield because records from a Catalog is already lazy and I did not want to load a bunch of objects into ram that I did not need to, that is why I did not return a list. > > Jonathan ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] not allowed to access a particular tuple
- Original Message - From: "William Heymann" <[EMAIL PROTECTED]> To: Sent: Friday, October 20, 2006 8:55 AM Subject: [Zope] not allowed to access a particular tuple This is an external method I wrote to make it easier to iterate over the records returned from searching the catalog. However if I have yield record,item instead of yield item it says that I am not allowed to access a particular tuple during iteration. How can I make it so that the value that it yields is something that a python script object can iterate over? I have also tried doing yield tuple((record,item)) yield list(record,item) and they give the same problem. How I use the script is pretty much for record, doc in catalogIter(context.Catalog(searchterms)): print record print doc Of course what is inside is different from that but it will cause the same problem since the issue happens in the iteration not inside the for loop. import zExceptions def catalogIter(records): "iterate over a catalog safely" for record in records: try: item = record.getObject() if item is not None: yield item except (zExceptions.Unauthorized, zExceptions.NotFound, KeyError, AttributeError): pass The 'yield' statement is not allowed within a 'try' clause (see the Python Reference manual). Why don't you just build a simple list (or list of tuples) and return that? Jonathan ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
