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Support python 3.12 #1012

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Support python 3.12 #1012

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Support python 3.12 
Currently, opencv-python fails to build under python 3.12. This patch
fixes that problem by permitting the use of any setuptools>=59.2.0,
rather than mandating that specific version.

This patch fixes #988. See discussion there for details.

I have tested by successfully installing opencv-python.
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@bryankaplan
bryankaplan committed Dec 15, 2024
commit 218a392d1810a6c9fa974441fb6da13d881082ab
2 changes: 1 addition & 1 deletion pyproject.toml
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Expand Up @@ -9,5 +9,5 @@ requires = [
"numpy>=2.0.0; python_version>='3.9'",
"pip",
"scikit-build>=0.14.0",
"setuptools==59.2.0",
"setuptools>=59.2.0",
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@Avasam Avasam Aug 1, 2024 •
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I normally wouldn't recommend pinning setuptools on an upperbound unless you have an explicit reason, but v71 changed how it vendors its dependencies in a major way. https://setuptools.pypa.io/en/latest/history.html#v71-0-0
Where it'll prefer already installed deps over its vendors. This can cause issues if the environment has an older version of a dep installed (which wasn't problematic before for setuptools, as it'd use it's own vendor anyway).

Note that running pip install setuptools[core] would install the necessary dependencies along with setuptools.

Given the various distributions and dockerization of opencv-python, it might be warranted to progressively relax this pin by first going to:

Suggested change
"setuptools>=59.2.0",
"setuptools>=59.2.0,<71.0.0",

Leaving this to the maintainers whether that's a concern 😄

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I'm reticent to introduce an upper-bound with neither any observed problems nor a plan to fix any anticipated problems. But I'm happy to commit the suggestion if maintainers agree it's prudent.

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Yeah same, figured I'd at least let it be known.

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@bryankaplan Done, thank you

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