Some functions are Boolean in nature, returning a “yes” or “no” answer, or, more appropriately, a non-zero or zero value, respectively. Procedures are simply special cases, functions that do not ...

For some time now, Python developers have been able to “annotate” names with type information. With Python 3.5, type hints officially became part of the language (see PEP 484).

Enhancements to Python types Python’s type hinting system has expanded in functionality and utility with each new version. Version 3.13 adds three big new changes.