Chapter 35 User-Defined Subprograms
35.1 Subprograms that Return Values
In Python and many other computer languages, a subprogram that returns values is called a function. There are two categories of functions in Python. There are the built-in functions, such as int(), float(), and there are the user-defined functions, those that you can personally write and use in your own programs.
The general form of a Python function that returns one or more values is shown here.
def name([arg1, arg2, arg3, …]):
A statement or block of statements
return value1 [, value2, value3, … ]
where
►name is the name of the function.
►arg1, arg2, arg3, … is a list of arguments (variables, lists etc.) used to pass values from the caller to the function. There can ...
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