Updated reddit comments downloader for /r/rational

#!/usr/bin/env python2.7
#-*- coding: Utf-8 -*-

import json
import urllib2
import codecs
import time


def start(url):

  compage = urllib2.urlopen(url).read()
  x = json.loads(compage)['data']['children']
  comcount = len(x) - 1
  comfile = open("%s.txt"%username, 'a')
  for i in range(0,comcount):
      ##"no more then 30 requests per minute"
      time.sleep(60/30)

      rawdata = x[i]['data']['body']

      comments = rawdata.encode('utf-8')
      print(comments+"\n\n\n\n")

      comfile.write(comments)

  nextpageurl = "http://www.reddit.com/user/%s/comments/.json?count=25&after=%s" %(username, x[i]['data']['name'])
  comfile.close()

  if comcount >= 24:
    start(nextpageurl)
  else:
    print "Either finished or messed up somewhere. Check the txt file"

global username
username =      raw_input("Username:")
comurl = "http://www.reddit.com/user/%s/comments/.json" %username
start(comurl)