python采集百度搜索结果带有特定URL的链接

#coding utf-8
import requests
from bs4 import BeautifulSoup as bs
import re
from Queue import Queue
import threading
from argparse import ArgumentParser

arg = ArgumentParser(description='baidu_url_collet py-script by xiaoye')
arg.add_argument('keyword',help='keyword like inurl:?id=for searching sqli site')
arg.add_argument('-p','--page',help='page count',dest='pagecount',type=int)
arg.add_argument('-t','--thread',help='the thread_count',dest='thread_count',type=int,default=10)
arg.add_argument('-o','--outfile',help='the file save result',dest='oufile',type=int,default='result.txt')
result = arg.parse_args()
headers = {'User-Agent':'Mozilla/5.0(windows NT 10.0 WX64;rv:50.0) Gecko/20100101 Firefox/50.0'}

class Bg_url(threading.Thread):
    def __init__(self,que):
        threading.Thread.__init__(self)
        self._que = que
    def run(self):
        while not self._que.empty():
            URL = self._que.get()
            try:
                self.bd_url_collet(URL)
            except Exception,e:
                print(e)
                pass
    def bd_url_collect(self, url):
        r = requests.get(url, headers=headers, timeout=3)
        soup = bs(r.content, 'lxml', from_encoding='utf-8')
        bqs = soup.find_all(name='a', attrs={‘data-click‘:re.compile(r'.'), 'class':None})#获得从百度搜索出来的a标签的链接
        for bq in bqs:
            r = requests.get(bq['href'], headers=headers, timeout=3)#获取真实链接
            if r.status_code == 200:#如果状态码为200
                print r.url
                with open(result.outfile, 'a') as f:
                    f.write(r.url + '\n')
def main():
    thread = []
    thread_count = result.thread_count
    que = Queue()
    for i in range(0,(result.pagecount-1)*10,10):
    que.put('https://www.baidu.com/s?wd=' + result.keyword + '&pn=' + str(i))
    or i in range(thread_count):
    thread.append(Bd_url(que))

    for i in thread:
        i.start()

    for i in thread:
        i.join()

if __name__ == '__main__':
    main()

#执行格式
python aaaaa.py "inurl:asp?id=" -p 30 -t 30