urlopen访问网址会报错

nengbinh

访问百度就能返回内容 但是访问淘宝啊 鱼C啊 就会报错 信息如下 求帮忙 系统是Mac

代码如下： 我直接复制小甲鱼老师的代码过来的

import urllib.request
import chardet

def main():
    i = 0
   
    with open("url.txt", "r") as f:
        # 读取待访问的网址
        # 由于urls.txt每一行一个URL
        # 所以按换行符'\n'分割
        urls = f.read().splitlines()
        
    for each_url in urls:
        response = urllib.request.urlopen(each_url)
        html = response.read()

        # 识别网页编码
        encode = chardet.detect(html)['encoding']
        if encode == 'GB2312':
            encode = 'GBK'
        
        i += 1
        filename = "url_%d.txt" % i

        with open(filename, "w", encoding=encode) as each_file:
            each_file.write(html.decode(encode, "ignore"))

if __name__ == "__main__":
    main()


  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py", line 531, in open
    response = meth(req, response)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py", line 641, in http_response
    'http', request, response, code, msg, hdrs)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py", line 563, in error
    result = self._call_chain(*args)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py", line 503, in _call_chain
    result = func(*args)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py", line 755, in http_error_302
    return self.parent.open(new, timeout=req.timeout)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py", line 525, in open
    response = self._open(req, data)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py", line 543, in _open
    '_open', req)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py", line 503, in _call_chain
    result = func(*args)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py", line 1360, in https_open
    context=self._context, check_hostname=self._check_hostname)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py", line 1319, in do_open
    raise URLError(err)
urllib.error.URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1045)>

wongyusing

现在淘宝需要登录后才能访问商品信息