[Python-Dev] Pickle alternative in stdlib (Was: On breaking modules into packages)

[anatoly techtonik]

On Wed, Nov 3, 2010 at 9:08 PM, Glyph Lefkowitz <glyph at twistedmatrix.com> wrote:
>
> This is the strongest reason why I recommend to everyone I know that they
> not use pickle for storage they'd like to keep working after upgrades [not
> just of stdlib, but other 3rd party software or their own software]. :)
>
> +1.
> Twisted actually tried to preserve pickle compatibility in the bad old days,
> but it was impossible.  Pickles should never really be saved to disk unless
> they contain nothing but lists, ints, strings, and dicts.

But what is alternative in stdlib?
Don't you think that Python doesn't provide any?
-- 
anatoly t.