Jun 25, 2018 · When you set the default value of pk=0, you make its default value an int, but someone using your function could easily call. which would make pk of type str. If you …

If you're using typing (introduced in Python 3.5) you can use typing.Optional, where Optional[X] is equivalent to Union[X, None]. It is used to signal that the explicit value of None is allowed . …

Putting the default arg after *args in Python 3 makes it a "keyword-only" argument that can only be specified by name, not by position. If you want a keyword-only argument in Python 2, you …

Sep 11, 2024 · Python allows function arguments to have default values. If the function is called without the argument, the argument gets its default value. Python has a different way of …

Sep 3, 2024 · This PEP introduces the concept of type defaults for type parameters, including TypeVar, ParamSpec, and TypeVarTuple, which act as defaults for type parameters for which …

Aug 2, 2022 · In Python, we have the following 4 types of function arguments. In a function, arguments can have default values. We assign default values to the argument using the ‘=’ …

Feb 10, 2025 · Learn how to use default function arguments in Python by setting default values in function definitions. Simplify function calls and enhance flexibility.

Learn how to specify default parameter types in Python using type hints, annotations, and best practices for improving code readability and type safety.

Feb 17, 2024 · Python’s flexibility allows for combinations of types with default parameters, utilizing the Union type for arguments that can accept multiple types. Here’s how you can …

You can use like this. def boo(arg1, arg2, arg3: int = 10): .... You can find more information PEP 484's section on default argument values