Something I appreciate about #RStats, is that in **many** cases, I can type a function name, without the end parentheses, and see the code for that function.
I needed a custom, slightly modified version of code from one of my own packages for an analysis, and it was easier to get the code from the #RStats console and paste it into a file and modify it.
I can't easily do that with #Python (at least in one example I just tried).