What is optional argument in Python?

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.

Are function arguments optional?

Functions with optional arguments offer more flexibility in how you can use them. You can call the function with or without the argument, and if there is no argument in the function call, then a default value is used.

What is meant by optional argument?

Optional arguments enable you to omit arguments for some parameters. Both techniques can be used with methods, indexers, constructors, and delegates. When you use named and optional arguments, the arguments are evaluated in the order in which they appear in the argument list, not the parameter list.

Which type of argument is optional in function call statement?

Default arguments become optional during the function calls. If we provide a value to the default arguments during function calls, it overrides the default value. The function can have any number of default arguments. Default arguments should follow non-default arguments.

What is optional function?

By definition, an Optional Parameter is a handy feature that enables programmers to pass less number of parameters to a function and assign a default value.

Which of the following part of function definition is optional?

A function has two parts: the specification and the body. The specification (spec for short) begins with the keyword FUNCTION and ends with the RETURN clause, which specifies the datatype of the return value. Parameter declarations are optional.

Does args return a tuple?

The *args thing returns tuple because of that, and if you really need a list, you can transform it with one line of code! So in general: It speeds up your program execution. You do not it to change the arguments. It is not that hard to change it’s type.