6.12. GlossaryΒΆ
- chatterbox function
A function which interacts with the user (using
input
orprint
) when it should not. Silent functions that just convert their input arguments into their output results are usually the most useful ones.- composition (of functions)
Calling one function from within the body of another, or using the return value of one function as an argument to the call of another.
- dead code
Part of a program that can never be executed, often because it appears after a
return
statement.- fruitful function
A function that yields a return value instead of
None
.- incremental development
A program development plan intended to simplify debugging by adding and testing only a small amount of code at a time.
- None
A special Python value. One use in Python is that it is returned by functions that do not execute a return statement with a return argument.
- return value
The value provided as the result of a function call.
- scaffolding
Code that is used during program development to assist with development and debugging. The unit test code that we added in this chapter are examples of scaffolding.
- temporary variable
A variable used to store an intermediate value in a complex calculation.