[ryukafalz]

> The REPL is not on par. You can run an in-editor REPL and build your entire program in a REPL session. Combined with tap you can visualize your output on the fly.

I would like to point out, for fellow Lispers who enjoy REPL driven development, that you can do this with Python in Emacs via Elpy. `elpy-shell-send-statement` is something like `eval-last-sexp` or `geiser-eval-last-sexp` or... etc.

[blakers95]

Yes, in fact, that's exactly how I use the Python REPL. I can send the function or region from the emacs buffer to the Python console easily.