Python Type Hints Skill
Overview
Master Python type hints for better code quality, IDE support, and static type checking with mypy.
Topics Covered
Basic Type Hints
- Variable annotations
- Function signatures
- Return types
- Optional types
- Union types
Advanced Typing
- Generic types
- TypeVar and ParamSpec
- Protocol and structural typing
- Literal types
- TypedDict
Type Checking
- mypy configuration
- Strict mode settings
- Type ignore comments
- Stub files (.pyi)
- Type coverage
Runtime Types
- typing_extensions
- Pydantic validation
- Runtime type checking
- Dataclasses with types
- attrs integration
Best Practices
- Gradual typing strategy
- Third-party type stubs
- CI type checking
- Documentation with types
- Type-driven development
Prerequisites
- Python fundamentals
- OOP concepts
Learning Outcomes
- Write type-annotated code
- Configure mypy properly
- Use generic types
- Implement protocols