Migrate Python Codebase to Version 3.10

[gitar-bot-staging]

Upgrade Python from 3.9 to 3.10

📋 Description

This PR upgrades the Python version from 3.9 to 3.10 across the entire project infrastructure. The upgrade touches all core components including CI/CD workflows, service configurations, package setup files, and Docker images.

🎯 Motivation

• Security & Performance: Python 3.10 provides security improvements and performance optimizations over 3.9
• Modern Language Features: Access to new Python 3.10 features including structural pattern matching, better error messages, and improved type hints
• Dependency Compatibility: Ensure compatibility with newer library versions that may require Python 3.10+
• Long-term Support: Python 3.9 is approaching end-of-life, while 3.10 has longer support timeline

🔧 Changes Made

Infrastructure Updates

• CI/CD Workflows: Updated all GitHub Actions workflows (ci-release.yml, ci-staging.yml, ci-testing-deploy.yml) to use Python 3.10
• Docker Images: Updated base images from python:3.6-slim and python:3.9-slim to python:3.10-slim
• Requirements: Updated requirements/PYTHON_VERSION from 3.9 to 3.10

Service Configuration Updates

• Updated python_requires in setup.py files across all services and packages
• Updated Python version classifiers in package metadata
• Modified service library utils to use modern Python 3.10+ union syntax (str | Path instead of Union[str, Path])

Code Modernization

• Deprecated Module Replacement: Replaced deprecated distutils.util.strtobool with custom implementation (distutils deprecated in Python 3.10, removed in 3.12)
• Version Handling: Updated from distutils.version.StrictVersion to packaging.version.Version
• Type Annotations: Modernized type hints to use Python 3.10+ union syntax

Documentation

• Updated development documentation to reflect Python 3.10 requirement
• Updated migration guide with new Python version requirements

🧪 Impact

• Breaking Change: Developers must upgrade to Python 3.10 to work on this project
• Enhanced Performance: Benefits from Python 3.10 performance improvements
• Future-Proofing: Positions the codebase for continued compatibility with modern Python ecosystem

📚 Reference

• Python 3.10 Release Notes
• Python 3.10 New Features

✅ Test Plan

• Verify all CI/CD pipelines pass with Python 3.10
• Confirm all services build and run successfully
• Validate package installation and dependency resolution
• Run comprehensive test suite to ensure no regressions

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Link to run
Requested by: [email protected]