Datasets:
| import csv | |
| w = csv.writer(open("accounts.csv", "w", newline="")); w.writerow(["account", "name", "balance", "opened"]) | |
| for line in open("listing.txt"): | |
| if not line[:8].strip().isdigit(): continue | |
| b = line[30:42].strip(); neg = b.endswith("-"); b = float(b.rstrip("-").replace(",", "")) | |
| d = line[42:50] | |
| w.writerow([line[:8], line[8:30].strip(), f"{-b if neg else b:.2f}", f"{d[:4]}-{d[4:6]}-{d[6:]}"]) | |