making it easy to watch one piece

watchop.py

#!/usr/bin/python
#coding=utf-8
from bs4 import BeautifulSoup
import sys, re
import urllib, urllib2
import xml.etree.ElementTree as ET
import webbrowser
#import codes, Queue, threading, time

def spider(net):
  src = urllib.urlopen(net).read()
  parser = BeautifulSoup(src)
  return parser

#spider http://www.xiaozhan.net/onepiece/ to  get the number'th page  
def spider_xiaozhan(html, number):
  parser = spider(html)
  td = parser.find('div', 'left-part').findAll('td')
  if (number*3-2)+1 >= (len(td)-3) or number == 0:
    print('抱歉，目前没有这一集，可以期待')
  else:
    print('稍等，正在打开您的浏览器...')
    dist = td[number * 3 - 2].a['href']
    return dist
  return None

#spider http://www.letv.com/ptv/pplay/5330/**.html to get the video code
def spider_letv(html):
  parser = spider(html)
  input = parser.find('div', 'K-Info').findAll('input')
  value = input[4]['value']
  return value

#open webbrowser to watch op videos
def open_browser(url):
  webbrowser.open_new(url)

pattern = re.compile(r'\D', re.I | re.X)
while True:
  print "感谢使用脚本！您要收看最受人类欢迎动漫《海贼王》的第几集呢？"
  print "虽然目前暂不支持收看多集，但是《海贼王》的一集不简单呢！马上输入一个非负整数来体验吧！（例如1，123）输入任何非法字符即退出，浏览器打开后按ctrl-C退出"
  cmd = raw_input('episode: ')
  m = pattern.search(cmd)
  if m:
    print('正在退出...')
    sys.exit()
  else:
    geturl = int(cmd)
    a = spider_xiaozhan('http://www.xiaozhan.net/onepiece/', geturl)
    if a == None:
	  sys.exit()
    b = spider_letv(a)
    open_browser(b)
    continue