Object editors?

[Rick Lee]

I have heard of object/class browsers, either incorporated in IDE's or
stand-alone.  Is there any object/class editor which allows not only
browsing but also editing of object values?  Either stand-alone, or even
better already has an associated GUI built for it.  (I can use the
Python Interpreter, but I am looking for something more user-friendly
for non-Python programmers to use in an application.)

Thanks.

- Rick Lee