import csv, sys
data = [
['a'],
['b\nc','d'],
['e"'],
['f']
]
writer = csv.writer(sys.stdout, delimiter=',', lineterminator='\n')
for row in data:
writer.writerow(row)
aW1wb3J0IGNzdiwgc3lzCgpkYXRhID0gWwpbJ2EnXSwKWydiXG5jJywnZCddLApbJ2UiJ10sClsnZiddCl0KCndyaXRlciA9IGNzdi53cml0ZXIoc3lzLnN0ZG91dCwgZGVsaW1pdGVyPScsJywgbGluZXRlcm1pbmF0b3I9J1xuJykKZm9yIHJvdyBpbiBkYXRhOgogICB3cml0ZXIud3JpdGVyb3cocm93KQo=