Sleep better with type-safe Python — Jerry Pussinen, Staff Engineer and Python Competence Lead, Wolt

Type hints are an essential part of modern Python. By combining type hints with a static type checker and libraries which enable runtime type checking, it is possible to achieve runtime type-safe Python applications.

In this talk our Staff Engineer and Python Competence Lead Jerry Pussinen discusses the motivation for extensive usage of type hints, how to gradually add types to existing projects, how to deal with untyped dependencies, and finally, how to achieve runtime type-safety without sacrificing performance.