Mac 下python3 [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed 解决方法

原文:http://blog.yuccn.net/archives/625.html

python3.6下使用urllib 的request进行url 请求时候，如果请求的是https，请求可以会出现
“urllib.error.URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:749)>”

错误栈（部分）：

  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/urllib/request.py", line 544, in _open
    '_open', req)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/urllib/request.py", line 504, in _call_chain
    result = func(*args)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/urllib/request.py", line 1361, in https_open
    context=self._context, check_hostname=self._check_hostname)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/urllib/request.py", line 1320, in do_open
    raise URLError(err)
urllib.error.URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:749)>

解决方案

进入应用程序的Python 3.6目录，双击Install Certificates.command 进行安装，完毕后可以解决该问题。

（或者在命令行中输入“/Applications/Python\ 3.6/Install\ Certificates.command”）

参考：
https://stackoverflow.com/questions/40684543/how-to-make-python-use-ca-certificates-from-mac-os-truststore