openmedialibrary/oml/meta/duckduckgo.py
2019-01-24 18:36:20 +05:30

28 lines
654 B
Python

# -*- coding: utf-8 -*-
import ox.web.duckduckgo
import stdnum.isbn
from .utils import find_isbns
import logging
logger = logging.getLogger(__name__)
def find(query):
logger.debug('find %s', query)
query += ' isbn'
isbns = []
for r in ox.web.duckduckgo.find(query):
isbns += find_isbns(' '.join(r))
results = []
done = set()
for isbn in isbns:
if isbn not in done:
isbn = stdnum.isbn.to_isbn13(isbn)
results.append(isbn)
done.add(isbn)
if len(isbn) == 13 and isbn.startswith('978'):
done.add(stdnum.isbn.to_isbn10(isbn))
return results