Florent Guillaume wrote: > Philipp von Weitershausen wrote: > >> >>> from zope.app.content.interfaces import IContentType >> >>> from zope.app.file.interfaces import IFile >> >>> from zope.interface import directlyProvides >> >>> directlyProvides(IFile, IContentType) > > > Watch out! directlyProvides is evil, it *replaces* the interfaces > provided by something. Here, if IFile implemented something else, it > would be lost. > > You should always use: > > directlyProvides(ob, ISomething, directlyProvidedBy(ob)) > > (Or use a convenience method to do that, I'm not sure if alsoProvides() > was ever implemented.)
Yes, alsoProvides() is available in Zope 3.1. So, >>> alsoProvides(ob, ISomething) is the shorter spelling of Florent's line above. Philipp _______________________________________________ Zope3-dev mailing list [email protected] Unsub: http://mail.zope.org/mailman/options/zope3-dev/archive%40mail-archive.com
