Hey Guido,
The PEP notes that the steering council can grant exceptions to the policy in some cases. So maybe it's time to loop them in and ask them about the PyCode_New proposal.
Ammar Askar
On Thu, Sep 2, 2021, 11:03 AM Guido van Rossum guido@python.org wrote:
Are there any exceptions? In the discussion about PyCode_New we've come to the conclusion that keeping it and PyCode_NewWithPosArgs around is going to be impossible to support, and we've found the few users of that API (Cython) supportive of changing it incompatibly.
On Thu, Sep 2, 2021 at 3:56 AM Łukasz Langa lukasz@langa.pl wrote:
Hi there, I noticed some deprecation activity this week. Nice! I'd just like to remind everyone that we have a policy for that described in PEP 387 https://www.python.org/dev/peps/pep-0387/ It's a very short PEP so I recommend you read it in its entirety. The important piece I want to highlight is that we cannot deprecate a feature in one release and remove it in the next one. We need at least two releases with the warning.
Relevant quotes:
Python's yearly release process (PEP 602 https://www.python.org/dev/peps/pep-0602) means that the deprecation period must last at least two years.
and:
Wait for the warning to appear in at least two minor Python versions of the same major version, or one minor version in an older major version (e.g. for a warning in Python 3.10, you either wait until at least Python 3.12 or Python 4.0 to make the change). It's fine to wait more than two releases.
Since this PEP is easy to miss, I linked it to the docs of DeprecationWarning in GH-28123 https://github.com/python/cpython/pull/28123.
Cheers, Ł
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