http://stackoverflow.com/questions/28541302/pandas-to-csv-with-quoting-3-quote-nonnumeric-doesnt-work
remove the actual numbers and show the usage of the csv module constants
Comment From: gfyoung
Don't the docs put more emphasis on the enums now? IMO this is not really an issue anymore.
Comment From: jorisvandenbossche
Yes, I think this was indeed solved