bring back py39

[hampsterx]

resolves #49 mbad~

Summary by CodeRabbit

• New Features
  • Added support for Python 3.9, including compatibility in testing, documentation badges, and code formatting.
• Chores
  • Updated project metadata and configuration to reflect support for Python 3.9.

[coderabbitai]

Walkthrough

The changes expand Python version compatibility from 3.10+ to include Python 3.9 across the project. This includes updates to CI workflows, documentation badges, code formatting configuration, and package metadata to reflect and support Python 3.9 alongside existing supported versions.

Changes

Files/Paths	Change Summary
.github/workflows/publish.yml, test.yml	Added Python 3.9 to CI test matrix for workflows.
README.md	Added Python 3.9 badge for supported Python versions.
pyproject.toml	Included 'py39' in Black formatter's target-version configuration.
setup.py	Updated classifiers and python_requires to support Python 3.9.

Sequence Diagram(s)

sequenceDiagram
    participant Developer
    participant CI
    participant Codebase

    Developer->>CI: Push code/update workflows
    CI->>CI: Run tests on Python 3.9, 3.10, 3.11, 3.12
    CI->>Codebase: Validate compatibility across all versions
    Codebase-->>CI: Test results for each Python version
    CI-->>Developer: Report test outcomes

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Assessment against linked issues

Objective	Addressed	Explanation
Relax Python version constraint to include >=3.9 (#49)	✅
Update CI and metadata to reflect/support Python 3.9 (#49)	✅

Assessment against linked issues: Out-of-scope changes

No out-of-scope changes found.

Poem

In the warren, code hops with delight,
Python 3.9 joins the burrow tonight!
Badges shine bright, workflows align,
Black formatter and setup now both opine:
"Welcome, dear 3.9, to our rabbit design!"
🐇✨

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📜 Recent review details

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Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between f70c539 and 7b78e02.

📒 Files selected for processing (5)

• .github/workflows/publish.yml (1 hunks)
• .github/workflows/test.yml (1 hunks)
• README.md (1 hunks)
• pyproject.toml (1 hunks)
• setup.py (1 hunks)

⏰ Context from checks skipped due to timeout of 90000ms (5)

• GitHub Check: test (3.12)
• GitHub Check: test (3.11)
• GitHub Check: test (3.9)
• GitHub Check: test (3.10)
• GitHub Check: test-docker

🔇 Additional comments (6)

README.md (1)

3-3: Add Python 3.9 badge: The new badge matches existing styling and correctly links to the Python 3.9 release page, clearly indicating support for 3.9.

.github/workflows/test.yml (1)

14-14: Expand test matrix to include Python 3.9: Adding “3.9” aligns with the PR goal to support Python 3.9. Please verify that all tests pass on Python 3.9.

pyproject.toml (1)

3-3: Update Black target-version to include py39: Including 'py39' ensures code formatting applies correctly for Python 3.9.

setup.py (2)

20-23: Add Python 3.9 to package classifiers: The new "Programming Language :: Python :: 3.9" entry accurately reflects the expanded compatibility.

---

27-27: Adjust python_requires to >=3.9: Lowering the requirement to >=3.9 aligns with the added support.

.github/workflows/publish.yml (1)

13-13: Include Python 3.9 in publish workflow matrix: Ensures the publish job also validates against Python 3.9.

✨ Finishing Touches

• 📝 Generate Docstrings

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