def main():
parser = argparse.ArgumentParser(description="""Extract paper urls in the parent page.
Example:
python download_paper_urls.py \
--page_url "http://papers.nips.cc/book/advances-in-neural-information-processing-systems-26-2013" \
--link_parent_selector "div.main ul li" \
--link_selector "a:eq(0)" \
--output_path data/nips-2013.txt""")
parser.add_argument("--page_url", required=True, type=str,
help="URL of the page that contains paper urls")
parser.add_argument("--link_parent_selector", required=True, type=str,
help="CSS selector of the link parent element")
parser.add_argument("--link_selector", required=True, type=str,
help="CSS selector of the link element")
parser.add_argument("--output_path", required=True, type=str,
help="Path of file to save the result")
args = parser.parse_args()
urls = extract_page_urls(args.page_url, args.link_parent_selector,
args.link_selector)
urls = list(urls)
sys.stderr.write("Extracted {} urls from {}\n".format(
len(urls), args.page_url))
with codecs.open(args.output_path, "w", "utf8") as output_file:
urls = map(lambda url: urlparse.urljoin(args.page_url, url),
urls)
output_file.write("\n".join(urls))
def test_extract_page_urls():
page_url = "http://papers.nips.cc/book/advances-in-neural-information-processing-systems-26-2013"
link_parent_selector = "div.main ul li"
link_selector = "a:eq(0)"
urls = list(extract_page_urls(page_url,
link_parent_selector,
link_selector))
actual = len(urls)
expected = 360
assert_equals(actual, expected)
