Type Annotations in Python
Type annotations allow you to indicate the expected data types of variables, function arguments, and return values. They help with code readability and enable better tooling and static analysis.
Basic Usage
Common Types
int
,float
,str
,bool
List
,Dict
,Tuple
,Set
(fromtyping
module)
Example with Collections
Optional and Union
Benefits
- Better editor support
- Early error detection
- Improved documentation