问题描述

我正在尝试使用 python 从网络获取数据.我为其导入了 urllib.request 包，但在执行时出现错误:

证书验证失败:无法获取本地颁发者证书 (_ssl.c:1045)

• 我在 Mac OS High Sierra 上使用 Python 3.7.
• 我正在尝试从以下位置获取 CSV 文件:

  只需双击该文件等待它安装，在我的情况下，你就可以开始了

  I am trying to get data from the web using python. I imported urllib.request package for it but while executing, I get error:

  certificate verify failed: unable to get local issuer certificate (_ssl.c:1045)
  

  • I am using Python 3.7 on Mac OS High Sierra.
  • I am trying to get CSV file from: https://s3.amazonaws.com/assets.datacamp.com/production/course_1606/datasets/winequality-red.csv

  When I changed the URL to 'http' - I am able to get data. But, I believe, this avoids checking SSL certificate.

  So I checked on the internet and found one solution: Run /Applications/Python 3.7/Install Certificates.command

  This solved my problem. But I have no knowledge on SSL and the likes. Can you help me understand what it actually did to solve my issue.

  If possible, please recommend me any good resource to learn about the security and certificates. I am new to this.

  Thanks!

  Note: I did go through the link - openssl, python requests error: "certificate verify failed"

  My question differs from the one in link because, I want to know what actually happens when I install certifi package or run Install Certificates.command to fix the error. I have a poor understanding of securities.

  解决方案

  For anyone who still wonders on how to fix this, i got mine by installing the "Install Certificates.command"

  Here is how I did,

  Just double click on that file wait for it to install and in my case, you will be ready to go

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