You are definitely correct; it's really the combination of py3 using generators more frequently (which is a definite good thing) with the py3 repl not evaluatin

You are definitely correct; it's really the combination of py3 using generators more frequently (which is a definite good thing) with the py3 repl not evaluating them that keeps me going back to py2 for my repl needs. A more fair comparison is with ghci, which expands thunks and runs IO actions when functions return them. As others have pointed out, this can be "dangerous" in the sense of flooding your console with crap (try typing [1..] in ghci; its' annoying, but not the end of the world either), but it's also really convenient when that's what you want. The python2 repl/functions do what I want, and the python3 repl/functions don't, or at least don't often enough that I keep going back to python2 for all my repl needs. Just a random chunk of anecdata, I guess.