通过示例第 5 章 urllib.error.URLError

如何解决通过示例第 5 章 urllib.error.URLError

我被困在关于我在书中遵循的书签工具的第 5 章。我正在使用 Django 3.1 和以下版本（我已经检查了几乎 10 次）这个版本

GitHub：[https://github.com/PacktPublishing/Django-3-by-Example/tree/master/Chapter05]

但我仍然有这个错误：urllib.error.URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_Failed] certificate verify Failed: unable to get local issuer certificate (_ssl.c:1108)>

File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/urllib/request.py",line 1319,in do_open

h.request(req.get_method(),req.selector,req.data,headers,File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/http/client.py",line 1230,in request

self._send_request(method,url,body,encode_chunked)

File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/http/client.py",line 1276,in _send_request

self.endheaders(body,encode_chunked=encode_chunked)

File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/http/client.py",line 1225,in endheaders

self._send_output(message_body,line 1004,in _send_output

        A message_body may be specified,to be appended to the request.

        """

        self._buffer.extend((b"",b""))

        msg = b"\r\n".join(self._buffer)

        del self._buffer[:]

        self.send(msg)

 

        if message_body is not None:

 

            # create a consistent interface to message_body

            if hasattr(message_body,'read'):

File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/http/client.py",line 944,in send

self.connect()

File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/http/client.py",line 1399,in connect

self.sock = self._context.wrap_socket(self.sock,File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/ssl.py",line 500,in wrap_socket

return self.sslsocket_class._create(

File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/ssl.py",line 1040,in _create

self.do_handshake()

File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/ssl.py",line 1309,in do_handshake

self._sslobj.do_handshake()

During handling of the above exception,another exception occurred:
File "/Users/ricardoponce/Documents/WebSocial/venv/lib/python3.8/site-packages/django/contrib/staticfiles/handlers.py",line 76,in __call__

return self.application(environ,start_response)

File "/Users/ricardoponce/Documents/WebSocial/venv/lib/python3.8/site-packages/django/core/handlers/wsgi.py",line 133,in __call__

response = self.get_response(request)

File "/Users/ricardoponce/Documents/WebSocial/venv/lib/python3.8/site-packages/django/core/handlers/base.py",line 128,in get_response

response = self._middleware_chain(request)

File "/Users/ricardoponce/Documents/WebSocial/venv/lib/python3.8/site-packages/django/core/handlers/exception.py",line 49,in inner

response = response_for_exception(request,exc)

File "/Users/ricardoponce/Documents/WebSocial/venv/lib/python3.8/site-packages/django/core/handlers/exception.py",line 103,in response_for_exception

response = handle_uncaught_exception(request,get_resolver(get_URLconf()),sys.exc_info())

File "/Users/ricardoponce/Documents/WebSocial/venv/lib/python3.8/site-packages/django/core/handlers/exception.py",line 138,in handle_uncaught_exception

return debug.technical_500_response(request,*exc_info)

File "/Users/ricardoponce/Documents/WebSocial/venv/lib/python3.8/site-packages/django_extensions/management/technical_response.py",line 37,in null_technical_500_response

six.reraise(exc_type,exc_value,tb)

File "/Users/ricardoponce/Documents/WebSocial/venv/lib/python3.8/site-packages/six.py",line 702,in reraise

raise value.with_traceback(tb)

File "/Users/ricardoponce/Documents/WebSocial/venv/lib/python3.8/site-packages/django/core/handlers/exception.py",line 47,in inner

response = get_response(request)

File "/Users/ricardoponce/Documents/WebSocial/venv/lib/python3.8/site-packages/django/core/handlers/base.py",line 179,in _get_response

response = wrapped_callback(request,*callback_args,**callback_kwargs)

File "/Users/ricardoponce/Documents/WebSocial/venv/lib/python3.8/site-packages/django/contrib/auth/decorators.py",line 21,in _wrapped_view

return view_func(request,*args,**kwargs)

File "/Users/ricardoponce/Documents/WebSocial/bookmarks/images/views.py",line 23,in image_create

new_item = form.save(commit=False)

File "/Users/ricardoponce/Documents/WebSocial/bookmarks/images/forms.py",line 35,in save

response = request.urlopen(image_url)

File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/urllib/request.py",line 222,in urlopen

return opener.open(url,data,timeout)

File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/urllib/request.py",line 525,in open

response = self._open(req,data)

File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/urllib/request.py",line 542,in _open

result = self._call_chain(self.handle_open,protocol,protocol +

File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/urllib/request.py",line 502,in _call_chain

result = func(*args)

File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/urllib/request.py",line 1362,in https_open

return self.do_open(http.client.HTTPSConnection,req,File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/urllib/request.py",line 1322,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:1108)>

调试器在您的 Wsgi 应用程序中捕获了一个异常。您现在可以查看导致错误的回溯。

要在交互式回溯和纯文本之间切换，您可以点击“回溯”标题。从文本回溯中，您还可以创建它的粘贴。对于代码执行，将鼠标悬停在要调试的框架上，然后单击右侧的控制台图标。

您可以在堆栈帧中执行任意 Python 代码，还有一些额外的帮助程序可用于自省：

dump() shows all variables in the frame
dump(obj) dumps all that's kNown about the object

brought to you by DON'T PANIC,your friendly Werkzeug powered traceback interpreter.