Link Extractor in Python

D4rk357, my friend made a Link Extractor in python. A very useful tool to extratct links form website:

#!/usr/bin/python
 #A  small link extractor program .
import os,sys,urllib,re,httplib
if len(sys.argv) != 2:

print "\n|-----------------------------------------------------------------|"

print "|          lastman100[@]gmail[dot]com                             |"

print "|           10/2010     Link Extractor    v0.1                      |"

print "| Visit   : http://www.garage4hackers.com                                |"

print "|-----------------------------------------------------------------|\n"
ab=raw_input("enter URL to extract the link\n")

ht=re.compile("http://")

if ht.search(ab):

sa=urllib.urlopen(ab)

else:

sa=urllib.urlopen('http://'+ab)
st=sa.read()
link=re.compile('http\S\W+'+'\S+')
y =link.finditer(st)
for i in y:

print i.group()