背景和问题：
我正在尝试使用Google Roads API提取某些道路的速度限制。当我尝试执行网站上描述的基本示例时，出现错误HTTPError: HTTP Error 403: Forbidden。我正在使用以下代码：
# Import libraries
import urllib.request as req
# Extract road data
key = 'my_key'
mounted_url = 'https://roads.googleapis.com/v1/speedLimits?path=38.75807927603043,-9.03741754643809|38.6896537,-9.1770515|41.1399289,-8.6094075&key=' + key
response = req.urlopen(mounted_url)
我试过的：
我已经检查了API 故障排除部分和几个类似的问题：
- 获取 403 - 禁止 Google 服务帐户
- 来自谷歌 API Javascript 客户端的 403 禁止错误
- 403 禁止响应 Google API
- Google Drive API 403 被禁止
我已经尝试过这些网站上给出的建议：
- 我的 API 密钥工作正常。如果我使用Google Directions API提取数据，它工作得非常好：
# Extract directions data
mounted_url = 'https://maps.googleapis.com/maps/api/directions/json?origin=Disneyland&destination=Universal+Studios+Hollywood&key=' + key
response = req.urlopen(mounted_url)
额外细节：
这是完整的错误：
---------------------------------------------------------------------------
HTTPError Traceback (most recent call last)
<ipython-input-3-ffb4fce3ffb5> in <module>
2 key = 'my_key'
3 mounted_url = 'https://roads.googleapis.com/v1/speedLimits?path=38.75807927603043,-9.03741754643809|38.6896537,-9.1770515|41.1399289,-8.6094075&key=' + key
----> 4 response = req.urlopen(mounted_url)
~\Anaconda3\lib\urllib\request.py in urlopen(url, data, timeout, cafile, capath, cadefault, context)
220 else:
221 opener = _opener
--> 222 return opener.open(url, data, timeout)
223
224 def install_opener(opener):
~\Anaconda3\lib\urllib\request.py in open(self, fullurl, data, timeout)
529 for processor in self.process_response.get(protocol, []):
530 meth = getattr(processor, meth_name)
--> 531 response = meth(req, response)
532
533 return response
~\Anaconda3\lib\urllib\request.py in http_response(self, request, response)
638 # request was successfully received, understood, and accepted.
639 if not (200 <= code < 300):
--> 640 response = self.parent.error(
641 'http', request, response, code, msg, hdrs)
642
~\Anaconda3\lib\urllib\request.py in error(self, proto, *args)
567 if http_err:
568 args = (dict, 'default', 'http_error_default') + orig_args
--> 569 return self._call_chain(*args)
570
571 # XXX probably also want an abstract factory that knows when it makes
~\Anaconda3\lib\urllib\request.py in _call_chain(self, chain, kind, meth_name, *args)
500 for handler in handlers:
501 func = getattr(handler, meth_name)
--> 502 result = func(*args)
503 if result is not None:
504 return result
~\Anaconda3\lib\urllib\request.py in http_error_default(self, req, fp, code, msg, hdrs)
647 class HTTPDefaultErrorHandler(BaseHandler):
648 def http_error_default(self, req, fp, code, msg, hdrs):
--> 649 raise HTTPError(req.full_url, code, msg, hdrs, fp)
650
651 class HTTPRedirectHandler(BaseHandler):
HTTPError: HTTP Error 403: Forbidden
