Pavel Shpilev added the comment:
I know that CSV specification says empty field and empty string are the same,
however, I still believe there is practical use for unconventional processing
of such fields.
In our specific case we parse CSVs produced by Amazon Athena (based on Presto)
in
New submission from Pavel Shpilev :
It appears that in current implementation csv.QUOTE_ALL has no effect on csv.
reader(), it only affects csv.writer(). I know that csv is a poorly defined
format and all, but I think this might be useful to distinguish None and ''
values for the so
