Python type hints are not used at runtime, at least not ordinarily. ... Also note that Optional can be hinted as a Union with None; for example, int|None instead of Optional[int].

Learn about Python metaclasses, how to define and use them, and explore examples to understand their functionality with this comprehensive tutorial. Skip to content TechRepublic ...

Mypy can check more than simple Python types. In my last article, I introduced Mypy, a package that enforces type checking in Python programs.Python itself is, and always will remain, a dynamically ...