import os
import csv


sku_list = []
with open("product_SKU.csv", "r", encoding="utf-8") as file:
    for line in file:
        sku_strlist = line.split(" ")
        skustr = sku_strlist[-1].strip().replace("\"","")
        sku_list.append(skustr)

for sku in sku_list:
    with open("sku_product.csv", mode="a", encoding="utf-8", newline="") as f:
        csv_writer = csv.writer(f)
        csv_writer.writerow([sku,])