Hey Craig,

I have 3.2.3  in my laptop, but I use the machines of the University
(which have 3.1.1) to do computations that take long time.

---Alex

On 2 mar, 11:19, Craig Citro <[email protected]> wrote:
> Ah, does this mean you have a running copy of 3.1.1 still? Because I
> think it'll be easier to give you a patch against 3.1.1 than a patch
> against 3.2.3 ...
>
> -cc
>
> On Mon, Mar 2, 2009 at 10:06 AM, Alex Lara <[email protected]> wrote:
>
> > 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 <[email protected]> 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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