import sys
from bs4 import *
import urllib2
import re

if len(sys.argv) != 2:
    print "USAGE:"
    print "Python test.py Your_URL"
else:
        url = sys.argv[1]

html_page = urllib2.urlopen(url)
soup = BeautifulSoup(html_page)
for link in soup.findAll('a'):
    print link.get('href')