Extracts links from a json file

exl.py

import re
def elff(filename):
	f = open(filename, "r")
	s=f.read()
	f.close()
	regex = re.compile(r'"(http[^"]*)"')
	links = regex.findall(s)
	return links 
	
def savefile(filename, s):
	f = open(filename, "w")
	f.write(s)
	f.close()
	
	
if __name__=='__main__':
	import sys
	filename = sys.argv[1]
	if len(sys.argv)==2: ofilename="%s.html" %filename
	else: ofilename=sys.argv[2]
	print ofilename
	links = elff(filename)
	s = "<ol>"
	for i in links:
		s+= '<li><a href="%s" target="_blank">%s</a></li>\n' %(i, i)
	s+="</ol>"
savefile(ofilename, s)