Hi Craig,

Thanks for explanation, it was clear. Now I have six files, but the
program is still running and will generate more files. So, I would
love you can explain me how to fix the problem.

Thanks,

----Alex

On 1 mar, 23:41, Craig Citro <craigci...@gmail.com> wrote:
> >> From command line of Sage 3.1.1, I saved some object, and then I could
> >> open it with sage 3.2.3. Next I open test.sobj (this was created by a
> >> sage program) in sage 3.1.1,  saved it again, and when I tried to open
> >> it on sage 3.2.3. Here you will find that 
> >> object:http://math.arizona.edu/~alara/test.sobj
>
> >> ----Alex
>
> > Thanks.  I'll take a look at it.  I've also CC'd Craig Citro who most
> > likely knows what is going on here.
>
> > --Mike
>
> Hi Alex,
>
> Yeah, this one is going to be a little bit annoying to fix. Here's
> what's going on: in between 3.1.1 and 3.2.3, fraction fields got moved
> over to the new coercion model. This is good, but as it happens, the
> switch was done in such a way that it caused the pre-existing pickles
> to not load correctly (which is exactly what you're seeing). There's
> probably a clean and classy way to fix this, and I'll be happy to look
> at it carefully in a few weeks if no one beats me to it (I'm busy
> trying to finish up my thesis). This is now trac #5419.
>
> In the interim, you probably want to hack something together so that
> you can load your pickles. I managed to make sage 3.2.3 load the
> pickles, but it's a pretty ugly hack, and you'll still need to re-save
> the objects as newer pickles (which actually has one or two more
> wrinkles), so that you don't have to deal with this in the short term.
> How many of these files are there? If it's just a few, e-mail them to
> me off-list, and I'll just re-pickle them in a newer format and send
> them back to you. If there are more than that, I'll carefully explain
> how you can fix them yourself. :)
>
> -cc
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