🐛 Debugging Guide

Content Outline

Comprehensive debugging techniques and tools for PyMapGIS development:

1. Debugging Philosophy and Approach

• Systematic debugging methodology
• Problem isolation techniques
• Hypothesis-driven debugging
• Documentation and reproduction
• Prevention-focused debugging

2. Python Debugging Tools

• pdb: Python debugger usage
• ipdb: Enhanced interactive debugging
• IDE Debugging: VS Code, PyCharm integration
• Remote Debugging: Debugging deployed applications
• Post-mortem Debugging: Analyzing crashes

3. Logging and Tracing

• Logging configuration and best practices
• Structured logging for geospatial applications
• Distributed tracing for complex workflows
• Performance logging and metrics
• Debug logging strategies

4. PyMapGIS-Specific Debugging

• Data source debugging techniques
• Cache debugging and inspection
• Spatial operation debugging
• Visualization debugging
• Plugin debugging strategies

5. Performance Debugging

• Profiling Tools: cProfile, line_profiler, memory_profiler
• Performance Monitoring: Real-time performance tracking
• Bottleneck Identification: Finding performance issues
• Memory Debugging: Memory leak detection
• I/O Performance: Debugging slow data operations

6. Geospatial Data Debugging

• Geometry validation and inspection
• Coordinate system debugging
• Spatial relationship debugging
• Data quality assessment
• Visualization debugging techniques

7. Network and API Debugging

• HTTP request/response debugging
• API authentication debugging
• Rate limiting and throttling issues
• Network connectivity problems
• SSL/TLS certificate issues

8. Testing and Test Debugging

• Test failure analysis
• Mock and fixture debugging
• Test isolation issues
• Flaky test debugging
• Performance test debugging

9. Environment and Configuration Debugging

• Environment variable debugging
• Configuration validation
• Dependency conflict resolution
• Path and import debugging
• Platform-specific issues

10. Production Debugging

• Log analysis and monitoring
• Error tracking and alerting
• Performance monitoring
• User issue reproduction
• Remote debugging techniques

11. Debugging Tools and Utilities

• Custom debugging utilities
• Geospatial data inspection tools
• Cache inspection utilities
• Performance monitoring tools
• Automated debugging scripts

12. Community and Support

• Getting help from the community
• Bug reporting best practices
• Providing debugging information
• Contributing debugging improvements
• Mentoring and knowledge sharing

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This guide will provide practical debugging techniques, tools, and strategies specifically tailored for PyMapGIS development and geospatial applications.