python-error-handling

Standardize Python input validation and exception hierarchies for API endpoints and batch tasks.

3|2|Updated Mar 23, 2026
One-click install
npx skills add https://github.com/wesleyegberto/software-engineering-skills --skill python-error-handling-wesleyegberto
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: python-error-handling
Source: https://github.com/wesleyegberto/software-engineering-skills/tree/main/plugins/python/skills/python-error-handling
Command: npx skills add https://github.com/wesleyegberto/software-engineering-skills --skill python-error-handling-wesleyegberto

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Python error handling patterns including input validation, exception hierarchies, and partial failure handling. Use when implementing validation logic, designing exception strategies, handling batch processing failures, or building robust APIs.

Core Features & Use Cases

  • Fail-fast input validation at API boundaries to catch issues early.
  • Design meaningful exception hierarchies with context-rich messages.
  • Support partial failures in batch operations without aborting the entire process.
  • Preserve debugging context through exception chaining and structured errors.
  • Real-world use: validate API inputs, convert external data to domain types, and provide clear user-facing errors.

Quick Start

Validate inputs at the boundary of a Python function and raise contextual exceptions when constraints fail.

Frequently Asked Questions about python-error-handling

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I handle batch processing failures in Python without aborting the entire process?

Python batch processing failures can be managed using batch-resilient patterns that support partial failures without aborting. This approach uses typed error contracts to isolate failing items, allowing valid operations to complete while preserving debugging context for failed entries.

What is the best way to design a Python exception hierarchy for APIs?

Designing a Python exception hierarchy for APIs involves creating descriptive exceptions with context-rich messages. Enforcing early fail-fast validation at API boundaries provides clear user-facing error messaging and standardizes failure guides for clients.

How does exception chaining work for preserving debugging context in Python?

Exception chaining in Python preserves debugging context by linking caught exceptions to new ones raised during error handling. This maintains the original traceback and failure context, which is critical when converting external data to domain types or handling structured errors.

How do I validate API inputs in Python to catch errors early?

Validating API inputs in Python to catch errors early requires applying fail-fast validation logic at function boundaries. When constraints fail, the system raises contextual exceptions immediately, preventing invalid data from propagating deeper into application logic.

Can I use Python error handling patterns for data parsing and type conversion?

Yes, Python error handling patterns support data parsing and type conversion by converting external data to domain types safely. They enforce early validation and use descriptive exceptions to provide clear failure guides when parsing invalid or unexpected data formats.