In Cloud9, what is the area called where you can write and save Python programs?

The area where you can write and save Python programs in Cloud9 is referred to as the Editor. The Editor is specifically designed for creating, modifying, and saving code files, making it the primary interface for writing programs in various programming languages, including Python.

The Terminal serves a different purpose; it is a command-line interface where users can execute commands, run scripts, and interact with the operating system rather than directly writing code. The Workspace, while related, is a broader area that encompasses all the resources and files you are working with in Cloud9, including the Editor and the Terminal. IDE stands for Integrated Development Environment, which is a general term for software that provides comprehensive facilities to programmers for software development, but it does not specifically refer to the area where you write the code within Cloud9.

Thus, the correct term for the part of Cloud9 where you specifically write and save your Python code is the Editor.