Implement Error Handling

Preserve stack traces during error handling by applying a boundary pattern that catches low-level exceptions and rethrows them as domain-specific errors with added context. This maintains the original stack trace for logging.

Yes, this error handling strategy works across both GUI applications and service layers in Python projects, covering UI event handlers, service calls, and centralized logging to ensure robustness.

Yes, you can enforce error handling consistency by following a practical checklist provided by the strategy, which verifies that safe UI decorators and boundary rethrowing are applied correctly.

Convert low-level exceptions into domain errors at architectural boundaries using the boundary pattern. This prevents infrastructure details from leaking into business logic while preserving the original stack trace for debugging.