Created
March 9, 2017 05:57
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# full leak can be extracted with 10 GB memory | |
# but you can extract a subset of leak if you have less memory | |
# pypy leak.py takes 30 mins | |
import csv | |
import os | |
memory = 10 # stands for 10GB, write your memory here | |
limit = 114434838 / 10 * memory | |
leak = {} | |
for c,row in enumerate(csv.DictReader(open('../input/promoted_content.csv'))): | |
if row['document_id'] != '': | |
leak[row['document_id']] = 1 | |
print(len(leak)) | |
count = 0 | |
filename = '../input/page_views.csv' | |
filename = '../input/page_views_sample.csv' # comment this out locally | |
for c,row in enumerate(csv.DictReader(open(filename))): | |
if count>limit: | |
break | |
if c%1000000 == 0: | |
print (c,count) | |
if row['document_id'] not in leak: | |
continue | |
if leak[row['document_id']]==1: | |
leak[row['document_id']] = set() | |
lu = len(leak[row['document_id']]) | |
leak[row['document_id']].add(row['uuid']) | |
if lu!=len(leak[row['document_id']]): | |
count+=1 | |
fo = open('leak.csv','w') | |
fo.write('document_id,uuid\n') | |
for i in leak: | |
if leak[i]!=1: | |
tmp = list(leak[i]) | |
fo.write('%s,%s\n'%(i,' '.join(tmp))) | |
del tmp | |
fo.close() |
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