Python Error Handling

Build robust Python applications with proper input validation, meaningful exceptions, and graceful failure handling. Good error handling makes debugging easier and systems more reliable.

When to Use This Skill

• Validating user input and API parameters
• Designing exception hierarchies for applications
• Handling partial failures in batch operations
• Converting external data to domain types
• Building user-friendly error messages
• Implementing fail-fast validation patterns

Core Concepts

1. Fail Fast

Validate inputs early, before expensive operations. Report all validation errors at once when possible.