I don’t think it’s at all pedantic, the library doesn’t accept a path and by extension is one step of abstraction away from a file. I’ve used the CSV library m

I don’t think it’s at all pedantic, the library doesn’t accept a path and by extension is one step of abstraction away from a file. I’ve used the CSV library many times with an in memory TextIO object (like an http response). It’s an important distinction.