The typing module was added to the standard library in Python 3.5 on a provisional basis and will no longer be provisional in Python 3.7. However, this means users of Python 3.5 - 3.6 who are unable ...

Experimenting with defining and validating types in Python. This repo sets some simple tasks to help you experiment and get started using function annotations (PEP 3107) and the typing module (PEP ...

Python’s typing module, used to annotate code with type information, lets you describe the types of a callable (e.g., a function). But that type information can’t be propagated across callables.

I've grabbed Sequence from the typing module, which includes all three Python sequence types—strings, lists and tuples. Once I do that, all of the mypy problems disappear, because all of the arguments ...

Python is dynamically typed, but supports the use of type hints via the typing module to allow third-party tools to verify Python programs. Python 3.8 adds new elements to typing to make more ...