📏 Code Standards

Content Outline

Comprehensive coding standards and conventions for PyMapGIS development:

1. Python Coding Standards

• PEP 8 compliance and exceptions
• Black code formatting configuration
• Import organization and conventions
• Line length and formatting rules
• Naming conventions for variables, functions, classes

2. Type Hints and Annotations

• Type hint requirements and standards
• Generic types and complex annotations
• Optional and Union type usage
• Return type specifications
• mypy configuration and compliance

3. Documentation Standards

• Docstring conventions (Google style)
• API documentation requirements
• Code comment guidelines
• README and example documentation
• Inline documentation best practices

4. Error Handling Standards

• Exception hierarchy and custom exceptions
• Error message formatting and clarity
• Logging standards and levels
• Error recovery and fallback strategies
• User-facing error communication

5. Performance Standards

• Performance benchmarking requirements
• Memory usage guidelines
• I/O optimization standards
• Caching implementation standards
• Parallel processing guidelines

6. Security Standards

• Input validation and sanitization
• Authentication and authorization patterns
• Secure coding practices
• Dependency security management
• Vulnerability reporting procedures

7. Testing Standards

• Test coverage requirements (minimum 80%)
• Test naming and organization
• Mock and fixture usage standards
• Performance test requirements
• Integration test guidelines

8. Git and Version Control Standards

• Commit message conventions
• Branch naming conventions
• Pull request requirements
• Code review standards
• Release tagging and versioning

9. Dependency Management

• Poetry configuration standards
• Dependency version pinning
• Optional dependency handling
• Security vulnerability management
• License compatibility requirements

10. Code Quality Tools

• Ruff linting configuration
• Pre-commit hook setup
• CI/CD quality gates
• Code complexity metrics
• Technical debt management

11. Module and Package Standards

• Package structure conventions
• Import and export patterns
• API design principles
• Backward compatibility requirements
• Deprecation procedures

12. Geospatial-Specific Standards

• Coordinate system handling
• Geometry validation standards
• Spatial data processing patterns
• Performance optimization for spatial operations
• Geospatial library integration standards

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This guide will provide detailed coding standards with examples, configuration files, and enforcement mechanisms for maintaining high code quality in PyMapGIS.