On Aug 16, 2014, at 6:28 PM, Nick Coghlan <ncogh...@gmail.com> wrote:
> I've seen a few people on python-ideas express the assumption that
> there will be another Py3k style compatibility break for Python 4.0.
Whenever I mention Python 4 or PEP 4000, it’s always a joke. However, saying
upfront that we will never break compatibility is a bold statement. Technically
even introducing new syntax breaks compatibility. Not to mention fixing
long-lasting bugs. So you’d need to split hairs just defining what we mean by a
“major compatibility break”.
Worse, if we ever did a change that we feel is within the bounds of the
contract, you’d have someone pointing at that PEP saying that they feel we
broke the contract. Splitting hairs again.
PEP 404 was necessary for some people/organizations to move on. I fail to see
how PEP 4000 (or rather PEP 4004? ;-)) would be useful in that context.
--
Best regards,
Łukasz Langa
WWW: http://lukasz.langa.pl/
Twitter: @llanga
IRC: ambv on #python-dev
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