Files
datamining_881/scripts/extract_wiki_zim.py

87 lines
3.2 KiB
Python

import shutil
from bs4 import BeautifulSoup
import os
from libzim.reader import Archive
from libzim.search import Query, Searcher
import csv
BASE_DIR = os.path.dirname(os.path.abspath(__file__))
INPUT_TSV = os.path.abspath(os.path.join(BASE_DIR, "../data/raw/imdb_datasets/title.basics.tsv"))
OUTPUT_DIR = os.path.abspath(os.path.join(BASE_DIR, "../data/processed/wikipedia_html"))
ZIM_PATH = os.path.abspath(os.path.join(BASE_DIR, "../data/raw/wikipedia/wikipedia_en_all_maxi_2025-08.zim"))
os.makedirs(OUTPUT_DIR, exist_ok=True)
zim = Archive(ZIM_PATH)
searcher = Searcher(zim)
print("The Zim file is now opened")
#Fetch the html AND the images and put them in a folder
def fetch_wikipedia_html_with_images(query, save_dir):
q = Query().set_query(query)
search = searcher.search(q)
if search.getEstimatedMatches() == 0:
return None
results = list(search.getResults(0, 5))
best_path = results[0]
try:
entry = zim.get_entry_by_path(best_path)
item = entry.get_item()
html_content = bytes(item.content).decode("UTF-8")
except Exception:
return None
soup = BeautifulSoup(html_content, "html.parser")
for img in soup.find_all("img"):
src = img.get("src")
if not src:
continue
img_path = src.lstrip("/")
try:
img_entry = zim.get_entry_by_path(img_path)
img_bytes = bytes(img_entry.get_item().content)
except Exception:
continue
img_name = os.path.basename(img_path)
img_file_path = os.path.join(save_dir, img_name)
with open(img_file_path, "wb") as f:
f.write(img_bytes)
img["src"] = img_name
return str(soup), best_path
#Go through each row of the tsv file and try to get the movie on wiki
with open(INPUT_TSV, encoding="utf-8") as f:
reader = csv.DictReader(f, delimiter="\t")
for row in reader:
tconst = row["tconst"]
title = row["primaryTitle"]
year = row["startYear"]
titleType = row["titleType"]
if year is None or titleType != "movie":
print("Skipping from TSV: ", title)
continue
# folder for each movie
movie_dir = os.path.join(OUTPUT_DIR, tconst)
os.makedirs(movie_dir, exist_ok=True)
query = f"{title} ({year} film)" if year != "\\N" else title #if year not empty
print(f"fetching Wikipedia HTML + images for {tconst}: {query}")
result = fetch_wikipedia_html_with_images(query, movie_dir)
if result is None:
print("Wikipedia fetch failed")
continue
else:
html_with_images, slug = result
slug_dir = os.path.join(OUTPUT_DIR, slug)
os.rename(movie_dir, slug_dir)
if html_with_images:
if "Directed by" not in html_with_images:
if os.path.exists(slug_dir):
shutil.rmtree(slug_dir)
continue
outfile = os.path.join(slug_dir, f"{tconst}.html")
if os.path.exists(outfile):
continue
with open(outfile, "w", encoding="utf-8") as out:
out.write(html_with_images)
else:
print(f"no Wikipedia page found for {query}")