Python 3.12.0rc1 is released: Release a new version with 3.12 support? #262

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1. ianthomas23 commented on Aug 18, 2023

   

   ianthomas23

   on Aug 18, 2023

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   There won't be any release here until NumPy have an official release on PyPI that supports Python 3.12. This is in progress https://pypi.org/project/numpy/1.26.0b1/#files

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2. effigies commented on Aug 25, 2023

   

   effigies

   on Aug 25, 2023

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   Would you consider pushing a beta, similar to numpy's 1.26.0b1, so that matplotlib can start shipping nightly wheels for cp312 and downstream tools can run their full test suites? Or even a .dev0 that could be yanked later?

   I don't have stats, but matplotlib is likely to be a blocker for a large number of projects in the scientific python ecosystem., and it would be nice to identify regressions in Python 3.12 before its final release.

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3. ianthomas23 commented on Aug 25, 2023

   

   ianthomas23

   on Aug 25, 2023

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   @effigies It is a reasonable request, but you don't need a ContourPy dev wheel as the latest sdist suffices.

   ContourPy has been built and tested on python 3.12 for over 2 months now (#254) on the major 3 platforms. There hasn't been a single problem identified caused by switching from 3.11 to 3.12. Incidentally, those CI runs necessitate building NumPy from source, which I have been happy to do to obtain early information about python 3.12 compatibility. Matplotlib's equivalent PR (matplotlib/matplotlib#24711) has yet to be merged so downstream projects are much more likely to have a problem with Matplotlib than ContourPy.

   Neither your projects nor Matplotlib need to wait for a ContourPy release that supports python 3.12 before you can proceed. There is no blocker here. Building ContourPy 1.1.0 from sdist takes about a minute on the 3 major platforms (e.g. https://github.com/contourpy/contourpy/actions/runs/5914819149/job/16040481410) using the usual pip install command assuming you have an appropriate toolchain installed which is always the case on github actions.

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4. ianthomas23 commented on Sep 9, 2023

   

   ianthomas23

   on Sep 9, 2023

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   There is now a ContourPy release candidate 1.1.1rc1 available (https://github.com/contourpy/contourpy/releases/tag/v1.1.1rc1) which includes wheels for Python 3.12.

   To install from PyPI use

   pip install --pre contourpy

   or the more explicit

   pip install "contourpy==1.1.1rc1"
5. ianthomas23 commented on Sep 17, 2023

   

   ianthomas23

   on Sep 17, 2023

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   ContourPy 1.1.1 is available on PyPI and conda-forge including wheels for CPython 3.12.
6. ianthomas23

   closed this as completedon Sep 17, 2023