Migrate Python Codebase from 3.9 to 3.10

[gitar-bot-staging]

Upgrade Python Runtime to 3.10

Description

This pull request upgrades the entire project from Python 3.9 to Python 3.10, implementing a comprehensive migration across all services, packages, and development tools. The upgrade modernizes the codebase to leverage Python 3.10's enhanced features while maintaining compatibility and security.

Key Changes

• Runtime Upgrade: Updated Python version from 3.9 to 3.10 across all components
• Deprecated Module Migration: Replaced distutils modules with modern alternatives (setuptools, packaging)
• Modern Configuration: Added pyproject.toml files to all packages and services
• Development Environment: Updated VS Code settings, Makefiles, and toolchain for Python 3.10
• CI/CD Pipeline: Upgraded Docker base images and workflow configurations
• Requirements: Updated all dependency files and constraints

Motivation

Python 3.10 brings significant improvements that benefit this project:

• Structural Pattern Matching: New match/case statements for cleaner data handling
• Enhanced Error Messages: Better debugging with improved SyntaxError, AttributeError, and NameError reporting
• Type System Enhancements: Union operator (X | Y), Parameter Specification Variables, and Type Guards
• Precise Line Numbers: More reliable debugging and profiling capabilities
• Security and Compatibility: Continued support and security updates

Full Python 3.10 release notes

The migration also addresses deprecation warnings and prepares the codebase for future Python versions by replacing modules like distutils that will be removed in Python 3.12.

Impact

• ✅ Backward Compatibility: All existing functionality preserved
• 🔧 Development: Enhanced debugging and error reporting
• 🚀 Performance: Access to Python 3.10 optimizations
• 🛡️ Security: Latest Python runtime with security updates
• 📦 Dependencies: All packages updated and tested

Files Changed

Core Configuration (168 files modified):

• requirements/PYTHON_VERSION: Updated to 3.10
• All pyproject.toml files: Added modern packaging configuration
• Docker files: Updated base images to Python 3.10
• CI workflows: Updated GitHub Actions and deployment configs
• Requirements files: Updated across all packages and services

Code Modernization:

• Replaced distutils.util.strtobool → setuptools.dist.strtobool
• Replaced distutils.version.StrictVersion → packaging.version.Version
• Updated development tool configurations (VS Code, Makefiles)

Testing

The systematic approach across 10 commits ensures each migration rule was applied consistently:

• Rule 1: Deprecated module replacements
• Rules 3-19: Service and package migrations
• Rule 20: Final development environment updates

Each commit maintains build integrity while progressively updating components.

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