IDLE is the Python IDE built with the Tkinter GUI toolkit.
IDLE has the following features:
- coded in 100% pure Python, using the Tkinter GUI toolkit
- cross-platform: works on Windows and Unix (on Mac OS, there are currently problems with Tcl/Tk)
- multi-window text editor with multiple undo, Python colorizing and many other features, e.g. smart indent and call tips
- Python shell window (a.k.a. interactive interpreter)
- debugger (not complete, but you can set breakpoints, view and step)
It is a part of the standard library and is described in the reference manual: http://www.python.org/doc/current/lib/idle.html
See also: ["IDLEfork"], ["IDEStudio"]