Question

我是一名学习python的学生，并且正在从网页中提取信息。如果我尝试运行从实时地震记录中获取信息的程序，则会收到SSL错误（更多详细信息，请参见下面的内容。）我所知道的代码没有错误，因为我正在跟老师一起在在线课程。

我尝试同时运行“安装证书”命令和“更新外壳程序配置文件”命令，但均不起作用。我正在Visual Studio代码中用python 3.7.2进行编码，我也在Mac上。我得到的错误代码是：

Exception has occurred: URLError
<urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1056)>
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py", line 1319, in do_open
    raise URLError(err)
  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 503, in _call_chain
    result = func(*args)
  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 525, in open
    response = self._open(req, data)
  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 503, in _call_chain
    result = func(*args)
  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 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 531, in open
    response = meth(req, response)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/urllib/request.py", line 222, in urlopen

我在终端中也收到了此消息：

Could not install packages due to an EnvironmentError: [Errno 13] Permission denied: '/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/certifi-2019.3.9.dist-info'
Consider using the `--user` option or check the permissions.

You are using pip version 18.1, however version 19.0.3 is available.
You should consider upgrading via the 'pip install --upgrade pip' command

我尝试在终端中键入该命令，但显示未找到命令。我正在使用学校计算机，因此某些事情被阻止了，也许这是问题的一部分，我不太清楚。这是我的代码：

import urllib.request 
import json

def printResults(data):
  theJSON = json.loads(data)

  if "title" in theJSON["metadata"]:
    print(theJSON["metadata"]["title"])

  count = theJSON["metadata"]["count"]
  print (str(count) + " events recorded")

def main():
  urlData = "http://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/2.5_day.geojson"

  webUrl = urllib.request.urlopen(urlData)
  print ("result code: " + str(webUrl.getcode()))
  if (webUrl.getcode() == 200):
    data = webUrl.read()
    printResults(data)
  else: 
    print("Received error, cannot parse results")

if __name__ == "__main__":
  main()

如果有解决方案，请记住我是计算机科学第一学期的学生，所以请简单地解释一下。

Visual Studio代码中是否存在针对SSL错误的修复程序？

0 个答案: