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import csv
import os
file_path = "/Users/maxwoolf/Downloads/amazon_ratings/"
files = os.listdir(file_path)
with open(file_path + 'amazon_ratings.csv', 'wb') as f:
writer = csv.writer(f)
writer.writerow(['user_id', 'item_id', 'rating', 'timestamp', 'category'])
for ratings_file in files:
extracted_name = ratings_file[8:(len(ratings_file)-4)] \
.replace("_", " ")
with open(file_path + ratings_file, 'rb') as f2:
for entry in f2:
data = entry.strip().split(",")
writer.writerow([data[0], data[1],
data[2], data[3], extracted_name])