Python type hints are used ahead of time, by the type-checking system; for instance, in your editor or IDE. In other words, Python’s type hints are for the developer , not the runtime.

Core object types In Python, there are several core object types that are fundamental to the language. These types are used to store and manipulate data. Numbers Integers: Whole numbers, such as 5, -3 ...

You might remember we mentioned that Python object types can be dynamic – the type can be defined by the value you tell the object to store or by the operations you perform on the object.

As pure Python code, it’s slow, because Python must convert back and forth between machine-native numerical types and its own internal object types. Now consider the Cython version of the same ...