The class was being used in a single place, passed to csv.reader().
However, per the docs, csv.reader() can handle a list of str objects.
https://docs.python.org/3/library/csv.html#csv.reader
> csvfile can be any object which supports the iterator protocol and
> returns a string each time its __next__() method is called — file
> objects and list objects are both suitable.
Jon Dufresne