[Python-Dev] Unpickling py2 str as py3 bytes (and vice versa) (original) (raw)
[Python-Dev] Unpickling py2 str as py3 bytes (and vice versa) - implementation (issue #6784)
Merlijn van Deen valhallasw at arctus.nl
Tue Mar 13 22:50:35 CET 2012
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On 13 March 2012 22:13, Guido van Rossum <guido at python.org> wrote:
Well, since trying to migrate data between versions using pickle is the "wrong" thing anyway, I think the status quo is just fine. Developers doing the "right" thing don't use pickle for this purpose.
I'm confused by this. "The pickle serialization format is guaranteed to be backwards compatible across Python releases" [1], which - at least to me - suggests it's fine to use pickle for long-term storage, and that reading this data in new Python versions is not a "bad" thing to do. Am I missing something here?
[1] http://docs.python.org/library/pickle.html#the-pickle-protocol
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