Zope-Dev

zope-dev@zope.dev

July 2009

39 participants
62 discussions

zope.interface 3.5.2 release
by Fred Drake 01 Jul '09

01 Jul '09

I just released zope.interface 3.5.2, which adds only this bug fix: - BaseAdapterRegistry.unregister, unsubscribe: Remove empty portions of the data structures when something is removed. This avoids leaving references to global objects (interfaces) that may be slated for removal from the calling application. I've made a source distribution available via PyPI: http://pypi.python.org/pypi/zope.interface/ Windows users would likely be thankful if someone with the appropriate tools and know-how to build Windows binary distributions were to do so and upload those to PyPI as well. Enjoy! -Fred -- Fred L. Drake, Jr. <fdrake at gmail.com> "Chaos is the score upon which reality is written." --Henry Miller

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Making PersistentList satisfy zope.schema.List
by Paul Carduner 01 Jul '09

01 Jul '09

I noticed that PersistentList and PersistentDict do not satisfy zope.schema.List or zope.schema.Dict, which is rather annoying. For example: class IBlogPost(Interface): tags = zope.schema.List(title=u'Tags', value_type=zope.schema.TextLine) class BlogPost(Persistent): implements(IBlogPost) tags = FieldProperty(IBlogPost['tags']) def __init__(self): super(BlogPost, self).__init__() self.tags = persistent.list.PersistentList() #aaah, WrongType error... will throw a WrongType: ([], <type 'list'>) error, which is especially confusing because the repr for PersistentList makes it look an awful lot like a regular list. same thing happens with PersistentDict. I would like to modify zope.schema._bootstrapfields by changing the _type attribute of the List class to (list, UserList), and do the same for Dict with (dict, UserDict). Then anything inheriting from UserList (including PersistentList) will satisfy the schema. Can anyone think of a reason why this would be bad? -- Paul Carduner http://www.carduner.net

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