Tests with Python 3.12

[toshihikoyanase]

Motivation

Python 3.12 is available, but integration modules have not yet been tested with it in CI.

Description

We should add 3.12 to the python-version matrix in the CI configuration.

optuna-integration/.github/workflows/tests.yml

Line 32 in e8e3718

python-version: ['3.8', '3.9', '3.10', '3.11']

Additionally, if the CI fails with Python 3.12, we may need to update the codebase to resolve compatibility issues.

If the tests pass as expected, we can also update the supported Python versions in README.md and pyproject.toml.

optuna-integration/README.md

Line 3 in e8e3718

[](https://www.python.org)

optuna-integration/pyproject.toml

Lines 19 to 20 in e8e3718

	"Programming Language :: Python :: 3.10",
	"Programming Language :: Python :: 3 :: Only",

Alternatives (optional)

No response

Additional context (optional)

No response

[DanielAvdar]

It seems like the main issue with Python 3.12 is the dependency problem related to TensorFlow. Specifically, there's a message stating: "No matching distribution found for tensorflow; extra == 'all'". You can find more details here.

[DanielAvdar]

tensorflow/tensorflow#62003
TensorFlow does not currently support Python 3.12.

[toshihikoyanase]

Thank for your investigation. We may need to skip such tests in Python 3.12.