On 07/01/2015 02:49 PM, Gael Varoquaux wrote: > On Wed, Jul 01, 2015 at 11:04:30AM -0400, Andreas Mueller wrote: >> Theano uses __setstate__ and __getstate__ and they seem to be happy with >> that. > As long as we don't change the data model that works easily, but then so > does pickle. If when chage the data model, which we have done a few time, > we need to add migration code. We used to do that in Mayavi, but it > turned out to be a very big maintenance burden. I'd like to push that > burden onto users: it's not hard to do if you understand the models. I > think that we already do a lot and that we shouldn't strive to do more, > as it is going to weaken us. I agree that we probably don't want to do this at this point. > >> We could add a library of "previously pickled" models to the tests to >> ensure it works.... > That we be necessary. But you need to add impedence matching code each > time you change the data model. At least it could guard us against changing the data model accidentally
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