zope.interface: zope.interface (Zope 3 Interface Infrastructure) zope.interface: zope.interface: Interfaces are a mechanism for labeling objects as conforming to a zope.interface: given API or contract. zope.interface: zope.interface: Homepage: http://pypi.python.org/pypi/zope.interface/ zope.interface: zope.interface: zope.interface: zope.interface: zope.interface: