[Python-Dev] doctest and pickle

[R. David Murray]

On Fri, 07 Jun 2013 10:54:57 -0700, Mark Janssen <dreamingforward at gmail.com> wrote:
> On Fri, Jun 7, 2013 at 10:50 AM, Mark Janssen <dreamingforward at gmail.com> wrote:
> >>     >>> from pickle import dumps, loads
> >>     >>> Fruit.tomato is loads(dumps(Fruit.tomato))
> >>     True
> >
> > Why are you using is here instead of ==?  You're making a circular
> > loop using "is"
> 
> I should add that when you're serializing with pickle and then
> reloading, the objects should be seen as "essentially equivalent".
> This means that they are either byte-by-byte equivalent (not sure
> actually if Python actually guarantees this), or every element would
> still compare equal and that is what matters.

Enums are supposed to be singletons, though, so the 'is' test
is exactly the point of this test.

--David