What is optional str in Python?

When defining a function, you can include any number of optional keyword arguments to be included using kwargs , which stands for keyword arguments. The function signature looks like this: def add_items(shopping_list, **kwargs): The parameter name kwargs is preceded by two asterisks ( ** ).30 Ağu 2021

As mentioned in the above comments, Optional[str] is a type-hint to be used by IDEs and other static analysis tools, not a default argument . If you want to make a default argument such that you can call the function with a() , then you do need to add = None as you proposed.

As mentioned in the above comments, Optional[str] is a type-hint to be used by IDEs and other static analysis tools, not a default argument . If you want to make a default argument such that you can call the function with a() , then you do need to add = None as you proposed.

A Python optional argument is an argument with a default value . You can specify a default value for an argument using the assignment operator. There is no need to specify a value for an optional argument when you call a function. This is because the default value will be used if one is not specified.16 Kas 2020

A Python optional argument is an argument with a default value . You can specify a default value for an argument using the assignment operator. There is no need to specify a value for an optional argument when you call a function. This is because the default value will be used if one is not specified.16 Kas 2020

When defining a function, you can include any number of optional keyword arguments to be included using kwargs , which stands for keyword arguments. The function signature looks like this: def add_items(shopping_list, **kwargs): The parameter name kwargs is preceded by two asterisks ( ** ).30 Ağu 2021