SWA_Paycheck_Extractor/csv_merge.py

with open("result.csv", "ab") as fout:
    with open("2018.csv", "rb") as f:
        fout.writelines(f)

    for num in range(2019,(2024+1)):
        # print(num)
        with open(str(num) + ".csv", "rb") as f:
            next(f)
            fout.writelines(f)