Does Python csv writer always use DOS end-of-line characters?
I realize that the csv library in Python always generates DOS end-of-line characters. Even if I use the 'wb' mode, even if I use Linux. import csv f = open('output.txt', 'wb'); writer = csv.writer(f) writer.writerow([2,3,4]); f.close() The above code always uses '\r\n' as the end of line separator. How can I make it use use '\n' only? You can give your writer instance a custom lineterminator argument in the constructor: writer = csv.writer(f, lineterminator="\n") Don Kirkby As Niklas answered , the lineterminator argument lets you choose your line endings. Rather than hard coding it to \n ,