第60讲的时候，关于一个tieba的程序例子的问题。

crjerry

看小甲鱼老师视频教学中有这么一个程序，小甲鱼老师run之后是可以执行的，但是我的程序执行之后就报错了，后面是报错信息，请大神看看怎么回事，如何解决呢？谢谢！
import urllib.request
import re
import os


def open_url(url):
    req = urllib.request.Request(url)
    req.add_header('User-Agent', 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36')
    page = urllib.request.urlopen(req)
    html = page.read().decode('utf - 8')
    return html

def get_img(html):
    p = r'<img class = "BDE_Image" src = "([^"]+\.jpg)"'
    imglist = re.findall(p, html)

    for each in imglist:
        print(each)
   
    '''
    try:
        os.mkdir('NewPics')
        for each in imglist:
            filename = each.split('/')[-1]
            urllib.request.urlretrieve(each, filename, None)
'''

if __name__ == '__main__':
    url = 'http://tieba.baidu.comm/p/3823765471'
    get_img(open_url(url))

run之后报错信息如下：
=========== RESTART: E:/Python_study/p14_10.py ===========
Traceback (most recent call last):
  File "E:\Web_develop\python\lib\urllib\request.py", line 1318, in do_open
    encode_chunked=req.has_header('Transfer-encoding'))
  File "E:\Web_develop\python\lib\http\client.py", line 1239, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "E:\Web_develop\python\lib\http\client.py", line 1285, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "E:\Web_develop\python\lib\http\client.py", line 1234, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "E:\Web_develop\python\lib\http\client.py", line 1026, in _send_output
    self.send(msg)
  File "E:\Web_develop\python\lib\http\client.py", line 964, in send
    self.connect()
  File "E:\Web_develop\python\lib\http\client.py", line 936, in connect
    (self.host,self.port), self.timeout, self.source_address)
  File "E:\Web_develop\python\lib\socket.py", line 704, in create_connection
    for res in getaddrinfo(host, port, 0, SOCK_STREAM):
  File "E:\Web_develop\python\lib\socket.py", line 745, in getaddrinfo
    for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
socket.gaierror: [Errno 11001] getaddrinfo failed

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "E:/Python_study/p14_10.py", line 31, in <module>
    get_img(open_url(url))
  File "E:/Python_study/p14_10.py", line 11, in open_url
    page = urllib.request.urlopen(req)
  File "E:\Web_develop\python\lib\urllib\request.py", line 223, in urlopen
    return opener.open(url, data, timeout)
  File "E:\Web_develop\python\lib\urllib\request.py", line 526, in open
    response = self._open(req, data)
  File "E:\Web_develop\python\lib\urllib\request.py", line 544, in _open
    '_open', req)
  File "E:\Web_develop\python\lib\urllib\request.py", line 504, in _call_chain
    result = func(*args)
  File "E:\Web_develop\python\lib\urllib\request.py", line 1346, in http_open
    return self.do_open(http.client.HTTPConnection, req)
  File "E:\Web_develop\python\lib\urllib\request.py", line 1320, in do_open
    raise URLError(err)
urllib.error.URLError: <urlopen error [Errno 11001] getaddrinfo failed>

crjerry

么人知道吗？