Julien Roy julien@jroy.ca Cached descriptors cache their output. They take into account instance attributes that they depend on, so when the instance attributes change, the descriptors will change the values they return. Cached descriptors cache their data in _v_ attributes, so they are also useful for managing the computation of volatile attributes for persistent objects. Persistent descriptors: property A simple computed property. See src/zope/cachedescriptors/property.rst. method Idempotent method. The return values are cached based on method arguments and on any instance attributes that the methods are defined to depend on. Note Only a cache based on arguments has been implemented so far. See src/zope/cachedescriptors/method.rst. Zope Foundation and Contributors zope-dev@zope.org https://github.com/zopefoundation/zope.cachedescriptors/issues https://github.com/zopefoundation/zope.cachedescriptors/blob/master/CHANGES.rst zopefoundation/zope.cachedescriptors zope.cachedescriptors