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Adopt the “time window-based” policy for support of Python versions from NEP 29 #35403

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Adopt the “time window-based” policy for support of Python versions from NEP 29 #35403

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683a1dd
Add documentation for following NEP 29
tobiasdiez Oct 10, 2021
3622cea
Merge branch 'develop' of https://github.com/sagemath/sage into publi…
tobiasdiez Jan 3, 2022
edf1711
Reformulate to emphasize the focus on old Python versions
tobiasdiez Jan 3, 2022
85c3375
Merge remote-tracking branch 'trac/public/python3/nep29' into nep29
tobiasdiez Mar 31, 2023
b3a120f
For new python versions
tobiasdiez Mar 31, 2023
7789eaf
Merge branch 'develop' into nep29
tobiasdiez Apr 7, 2023
4c3d853
Merge branch 'develop' into nep29
tobiasdiez Feb 11, 2024
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12 changes: 12 additions & 0 deletions src/doc/en/developer/coding_basics.rst
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Expand Up @@ -87,6 +87,18 @@ In particular,
def SomeIdentityValue(x):
return SomeValue(1)

.. _section-python-version:

Python Version
=================

In order to reduce the technical debt of maintaining the project, Sage follows
Numpy's time window-based support policy
`NEP 29 <https://numpy.org/neps/nep-0029-deprecation_policy.html>`_ for Python versions.
Accordingly, minor versions of Python that are older than 42 months
at the next planned release date are no longer supported.
Support for Python 3.9 (initially released in October 2020) is dropped in April 2024 and
support for Python 3.10 (initially released in October 2021) is dropped in April 2025.

.. _chapter-directory-structure:

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