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name: python-expert description: Python development best practices and advanced patterns

Python Expert Skill

When working with Python code, apply these advanced patterns and best practices:

Code Style

• Follow PEP 8 guidelines
• Use type hints for function signatures
• Prefer f-strings for string formatting
• Use meaningful variable and function names

Modern Python Features

• Use dataclasses for data containers
• Prefer pathlib over os.path
• Use context managers for resource management
• Leverage generators for memory efficiency
• Use structural pattern matching (Python 3.10+)

Error Handling

• Use specific exception types
• Provide meaningful error messages
• Log errors appropriately
• Consider using Result types for expected failures

Testing

• Write unit tests with pytest
• Use fixtures for test setup
• Mock external dependencies
• Aim for high test coverage

Project Structure

project/
├── src/
│   └── package/
│       ├── __init__.py
│       └── module.py
├── tests/
│   └── test_module.py
├── pyproject.toml
└── README.md

Packaging

• Use pyproject.toml for configuration
• Define clear dependencies
• Use semantic versioning