Traceback (most recent call last):这是什么错误

# --coding:utf-8--

from urllib import request

resp = request.urlopen("https://www.sougou.com/")

print(resp.read())

输出结果错误：

Traceback (most recent call last):
  File "E:\PythonProjects\MyStudy\paChong\urllibStudy.py", line 5, in <module>
    resp = request.urlopen("https://www.sougou.com/")
  File "E:\Program Files\Python310\lib\urllib\request.py", line 216, in urlopen
    return opener.open(url, data, timeout)
  File "E:\Program Files\Python310\lib\urllib\request.py", line 525, in open
    response = meth(req, response)
  File "E:\Program Files\Python310\lib\urllib\request.py", line 634, in http_response
    response = self.parent.error(
  File "E:\Program Files\Python310\lib\urllib\request.py", line 563, in error
    return self._call_chain(*args)
  File "E:\Program Files\Python310\lib\urllib\request.py", line 496, in _call_chain
    result = func(*args)
  File "E:\Program Files\Python310\lib\urllib\request.py", line 643, in http_error_default
    raise HTTPError(req.full_url, code, msg, hdrs, fp)
urllib.error.HTTPError: HTTP Error 403: Forbidden

Process finished with exit code 1

请问这是什么错误，一样的代码其他人运行没什么问题

加个请求头 headers = {'User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:23.0) Gecko/20100101 Firefox/23.0'}
这种的 应该是服务器拒绝这种访问请求了

一样的代码，别人运行就可以，显示是本地IP协议不正常