[GOOD FIRST ISSUE] Fix Black config inconsistency & stabilize threshold test

[hiroshitanaka-creator]

Track

ai-easy (AI/Engineering - Easy)

Task Description

Background

• Black formatting differs between Python 3.9 and 3.11
• W_Ethics Gate shows flaky behavior at threshold boundary (0.50)

Tasks

1. Align Python version requirements in pyproject.toml (e.g. python>=3.10)
2. Configure Black and Ruff consistently (version pin recommended)
3. Add or update pre-commit hooks
4. Add minimal reproducible test for threshold boundary
5. Ensure CI passes on Python 3.10 and 3.11

Acceptance Criteria

• pre-commit run --all-files passes locally
• CI is green (lint/type/security/unit)
• Boundary test is stable across 50 repeated runs

How to Start

make setup
make test
If tests fail, capture logs and share them in the issue.

Skills Needed

• Basic Python programming (>=3.10)
• Understanding of code formatting tools (Black, Ruff)
• Familiarity with pre-commit hooks
• Basic knowledge of unit testing (pytest)
• Ability to reproduce and debug flaky tests
• (Optional) Familiarity with floating-point precision issues

Learning Outcome

By completing this task, contributors will learn:

• How to stabilize CI pipelines across Python versions
• How to configure and enforce code formatting with pre-commit
• How to design minimal reproducible tests for flaky behavior
• How to debug boundary conditions involving floating-point values
• Best practices for contributing to a production-grade open source project

Resources & Guidance

Resources & Guidance

Relevant Files

• pyproject.toml
• .pre-commit-config.yaml
• po_core/ethics/gate.py
• tests/test_ethics_gate_min.py

Related Concepts

• Black formatting: https://black.readthedocs.io/
• pre-commit: https://pre-commit.com/
• Floating point precision issues

Tips

• Run pre-commit run --all-files before pushing
• If CI fails, compare Python versions locally

Suggested Implementation Steps

Suggested Implementation Steps

1. Run tests and confirm failure

   make test
   

2.Run formatter
pre-commit run --all-files

Prerequisites

• Read the README
• Set up development environment
• Review the contribution guidelines
• Join our Discussions

Additional Context

No response

[IlyasFardaouix]

I notice that the W_Ethics Gate is flaky at the 0.50 threshold boundary. I'm wondering if the issue might be related to floating-point precision issues. Have you considered using the decimal module or a library like mpmath to work with precise decimal numbers, especially when dealing with values like 0.50 that can be represented differently in binary?

[hiroshitanaka-creator]

Thank you very much😊

And I'm sorry for the delay in replying.
I have never considered that process.
I'll consider it!