csv

Read and write comma-separated files correctly (quoting, delimiters).

Beginner

import csv
with open("log.csv", newline="") as f:
    for row in csv.DictReader(f):
        print(row["time"], row["voltage"])
with open("out.csv", "w", newline="") as f:
    w = csv.writer(f); w.writerow(["t", "v"]); w.writerows(rows)

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