Python przekonwertuje plik DAT na CSV
import csv
with open("infile.dat") as infile, open("outfile.csv", "w") as outfile:
csv_writer = csv.writer(outfile)
prev = ''
csv_writer.writerow(['ID', 'PARENT_ID'])
for line in infile.read().splitlines():
csv_writer.writerow([line, prev])
prev = line
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