[Python-Dev] Increasing the C-optimized pickle extensibility (original) (raw)

Peter Wang pwang at anaconda.com
Fri Apr 26 17:57:31 EDT 2019


I strongly second not breaking backwards compatibility and interoperability, especially for persistent artifacts, unless there is a REALLY good reason. A potential unintended side effect of such breakages is that it slows down adoption of the new version.

-Peter

On Fri, Apr 26, 2019 at 10:27 AM Guido van Rossum <guido at python.org> wrote:

I think it's better not to introduce a new opcode, for the reason you stated -- you don't want your pickles to be unreadable by older Python versions, if you can help it.

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