If you read a csv file, alter the data and then write it back, it would be very nice to recreate also the quoting behaviour. So e.g. if the file is quoted in stylecsv.QUOTE_NONNUMERIC, it would be very useful to have thequoting property set correctly in thedialect object returned bycsv.Sniffer().sniff.
Also, I just figured out that the line terminator is also hard-coded to "\r\n". Would also be nice to be adaptive...

Linked PRs

• gh-129374: adds quoting detection to csv sniffer #134416