What is the name used for the integrated program development environment that comes with a Python installation?

IDLE

Explanation:

IDLE is the standard Python development environment. Its name is an acronym of "Integrated DeveLopment Environment". It works well on both Unix and Windows platforms.

It has a Python shell window, which gives you access to the Python interactive mode. It also has a file editor that lets you create and edit existing Python source files. IDLE is intended to be a simple IDE and suitable for beginners, especially in an educational environment. To that end, it is cross-platform, and avoids feature clutter.