I wrote a script to extract a web page link in Python

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# python 2.x
#
# usage: python this_script.py "http://qiita.com/"
#
#Install beautifulsoup4 in advance
# pip install beautifulsoup4

import codecs
import urllib2
import sys
from bs4 import BeautifulSoup

url = sys.argv[1]
html = urllib2.urlopen(url).read().decode('utf-8', 'ignore')
soup = BeautifulSoup(html, "html.parser")
links = [a.get("href") for a in soup.find_all("a")]

for l in links: print l

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