After a delay of nearly half a year, I've finally released IDLE 0.5. I'll quote from the README after listing the URL:

http://www.python.org/idle/

(Dear edu-sig members, please don't fill the edu-sig mailing list with detailed feedback on IDLE -- please use the newsgroup or the Python Bugs List. Discussion of requirements for adaptation of IDLE in education are welcome; please first check the TODO list (http://www.python.org/idle/idle-0.5/TODO.txt) to see if I've already thought of your request.)

FEATURES

IDLE has the following features:

- coded in 100% pure Python, using the Tkinter GUI toolkit (i.e. Tcl/Tk)

- cross-platform: works on Windows and Unix (on the Mac, 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)

USAGE

[...]

IDLE requires Python 1.5.2, so it is currently only usable with a Python 1.5.2 distribution. (An older version of IDLE is distributed with Python 1.5.2; you can drop this version on top of it.)

COPYRIGHT

IDLE is covered by the standard Python copyright notice (http://www.python.org/doc/Copyright.html).

FEEDBACK

For feedback, please use the Python Bugs List (http://www.python.org/search/search_bugs.html).

--Guido van Rossum (home page: http://www.python.org/%7Eguido/)

<P><A HREF="http://www.python.org/idle/">IDLE 0.5</A> - the Integrated DeveLopment Environment for Python in Python. (15-Feb-2000)