-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 03/16/2012 10:57 AM, Guido van Rossum wrote: > On Thu, Mar 15, 2012 at 9:48 PM, Tres Seaver <tsea...@palladion.com> > wrote: >> On 03/13/2012 06:49 PM, Nick Coghlan wrote: >>> On Wed, Mar 14, 2012 at 8:08 AM, Guido van Rossum >>> <gu...@python.org> wrote: >>>> If you can solve your problem with a suitably hacked Unpickler >>>> subclass that's fine with me, but I would personally use this >>>> opportunity to change the app to some other serialization >>>> format that is perhaps less general but more robust than pickle. >>>> I've been bitten by too many pickle-related problems to >>>> recommend pickle to anyone... >>> >>> It's fine for in-memory storage of (almost) arbitrary objects (I >>> use it to stash things in a memory backed sqlite DB via >>> SQLAlchemy) and for IPC, but yeah, for long-term cross-version >>> persistent storage, I'd be looking to something like JSON rather >>> than pickle. >> >> Note the Zope ecosystem (including Plone) is an *enoromous* >> installed base[1] using pickle for storage of data over many years >> and multiple versions of Python: until this point, it has always >> been possible to arrange for old pickles to work (e.g., by providing >> aliases for missing module names, etc.). >> >> ]1] tens of thousands of Zope-based sites in production, including >> very high-profile ones: http://plone.org/support/sites > > Don't I know it. :-) > > So do you need any help porting to Python 3 or not? The OP didn't > mention Zope.
ZODB is actually the biggest / most important non-ported items in the Zope ecosystem. We are close to a pure-Python version of persistent and it's pickle cache, and have some work done toward pure-Python BTrees. Tres. - -- =================================================================== Tres Seaver +1 540-429-0999 tsea...@palladion.com Palladion Software "Excellence by Design" http://palladion.com -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk9jaEsACgkQ+gerLs4ltQ4bQACfcRxaeRMLnmDRzWL2c537VLvC xsMAn2Cjql4Wvavr0MNyQxS58Af4EwMf =UT5J -----END PGP SIGNATURE----- _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
