I’ve not tried it either, Python’s native File IO is sufficient for me too, even for .csv files.
But this looks useful - cheers. Isn’t ghpythonlib.components how you access Node In Code?
Unfortunately not every Grasshopper component works when called via Node In Code. There are thousands of them, and this is a “nice to have”, so you can’t blame the devs.
If you want to use them natively in Grasshopper, the best description I can find is: Can Two GrassHopper definitions communicate? - #12 by RIL