LastFM session key generator

gen-sk.py

#!/usr/bin/env python

import sys, md5
import pycurl, simplejson, webbrowser

class CurlReader:
    def __init__(self):
        self.contents = ''
    def body_callback(self, buf):
        self.contents = self.contents + buf
def curl(url):
    t = CurlReader()
    c = pycurl.Curl()
    c.setopt(c.URL, url)
    c.setopt(c.WRITEFUNCTION, t.body_callback)
    c.perform()
    c.close()
    return t.contents

api_key = sys.argv[1]
api_sec = sys.argv[2]

print "API Key",api_key
print "Secret ",api_sec

print "Requesting an auth token."
response = simplejson.loads(curl("http://ws.audioscrobbler.com/2.0/?method=auth.gettoken&format=json&api_key=" + api_key))
token = response["token"]
print "Token: ",token

webbrowser.open("http://www.last.fm/api/auth/?api_key=" + api_key + "&token=" + token)
raw_input("(Press enter when you're done)")

print "Requesting a session key, this is your `sk` value."

sig = md5.new("api_key" + api_key + "methodauth.getSession" + "token" + token + api_sec).hexdigest()
print "Signat:",sig
response = simplejson.loads(curl("http://ws.audioscrobbler.com/2.0/?method=auth.getSession&format=json&api_key=" + api_key + "&token=" + token + "&api_sig=" + sig))
print "User:  ",response["session"]["name"]
print "Key:   ",response["session"]["key"]