s[start:stop:step]A python function is a block of reusable code that is designed to perform a specific task. It takes in input parameters, processes them, and returns a result. Functions allow for code reusability and improve the efficiency of a program.
To define a python function, you use the "def" keyword, followed by the function name, and a set of parentheses containing any parameters. The function body is then indented below and can contain any valid python code. Finally, you use the "return" keyword to specify the value you want the function to return.
To call a python function, you simply write the function name followed by a set of parentheses containing any required arguments. If the function returns a value, you can assign it to a variable or use it directly in your code.
A parameter is a variable that is used in the function definition to represent the input values. An argument, on the other hand, is the actual value that is passed into the function when it is called. Parameters are defined in the function header, while arguments are provided when calling the function.
Yes, you can return multiple values from a python function by separating them with commas after the "return" keyword. The values will be returned as a tuple, which can then be unpacked or accessed using indexing.