unpickling HasTraits object: how to prevent assignment of certain traits

Question

I have a HasTraits object which is written and read from disk using cPickle. The object has a certain trait that is computationally expensive to assign . From the traits documentation , I understand that all of the traits are being re-asigned when an object is read from disk.

I would like to prevent the expensive trait from being re-assigned when the object is read from disk. Is this possible?

Answer 1

如下所述，使此特征暂时变为： http : //docs.enthought.com/traits/traits_user_manual/advanced.html#persistence （BTW，请注意，这是比您链接的文档要新的版本，尽管本节内容在两个版本中。）