Hi,
Nearly two weeks ago I had the notebook stabilized and all known new
bugs fixed (after separating it off from sage as a separate program
and rewriting the expect stuff). But I realized that it would be a
total nightmare to introduce yet another sobj ("sage object") storage
format, which would make refactoring code extremely painful, and just
have to be changed again. So, I created an "abstract storage layer"
and implemented an storage system for *everything* in the Sage
notebook which doesn't use any special Sage-related pickles. Some
data is stored as pickled basic Python objects that can be read from
any version of Python with or without Sage installed, but that is it.
Rewriting the notebook to use an abstract storage layer is the sort
of thing that at first seems like it will take a day, but then takes
more than a week. Anyway, I did it. However, it's hard to imagine
that I didn't introduce numerous new bugs in the process, though I do
not know of any bugs at all.
So, I did an automatic migration of http://demo.sagenb.org to the new
notebook and put that at http://uw.sagenb.org/. I hope people will
test http://uw.sagenb.org/! Please try it. Report any bugs at all
that you find. Note that I've changed the icon in the upper left
corner to a new "sage notebook" icon that Harald Schilly designed, and
there are a few other small tweaks interface tweaks that people have
requested.
William
--
William Stein
Associate Professor of Mathematics
University of Washington
http://wstein.org
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