Wow, what you described is not at all what I was looking for when I supported Light Table. I already have IPython IDE where I have all that text editing, and all other stuff I need to type in and run my code. I was looking for something completely different, not yet another text editor! I was looking for something visual, where I can see what my code is doing without me having to insert a bunch of print statement. In fact, I found some of that here: http://pythontutor.com/visualize.html#mode=edit but I hoped that LT will do it even better.