pip install failed with SSL certificate verify failed (_ssl.c:833)

2022-01-25 00:00:00 python pip ssl-certificate

问题描述

我无法通过 pip install 安装任何外部 python 模块.我已经正确安装了 python，但是如果我使用 pip_install 它会显示这个错误.

I am not able to install any external python module through pip install. I have installed python correctly but if I use pip_install it shows me this error.

这是我运行 pip install pytesseract

 C:Users190560>pip install pytesseract
Collecting pytesseract
  Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:833)'),)': /simple/pytesseract/
  Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:833)'),)': /simple/pytesseract/
  Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:833)'),)': /simple/pytesseract/
  Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:833)'),)': /simple/pytesseract/
  Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:833)'),)': /simple/pytesseract/
  Could not fetch URL https://pypi.org/simple/pytesseract/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/pytesseract/ (Caused by SSLError(SSLError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:833)'),)) - skipping
  Could not find a version that satisfies the requirement pytesseract (from versions: )
No matching distribution found for pytesseract
Could not fetch URL https://pypi.org/simple/pip/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/pip/ (Caused by SSLError(SSLError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:833)'),)) - skipping

我该如何解决这个问题??

How do I solve this problem??

使用这个命令我可以部分解决问题

I can partially solve the problem by using this command

pip install --trusted-host pypi.org --trusted-host files.pythonhosted.org <package_name>

但我无法在我的计算机上找到任何 pip.ini 文件夹，如建议的那样这个问题在这里

but I cannot find any pip.ini folder on my computer as suggested by this question here

有什么建议可以永久解决这个问题吗?

Any suggestions to fix this problem permanently??

解决方案

我在需要代理访问外部网络的公司网络中遇到了类似的问题.在这种情况下，我们必须告诉 pip 代理:

I have experienced similar issues when I am in a corporate network where a proxy is required for external network access. In this case, we'll have to tell pip the proxy:

pip --proxy=http://your.corporate.proxy.com  install pytesseract

另一个可能的原因是由于 pypi 域更改.在这种情况下，您可以尝试以下解决方案:

Another possible cause is due to the pypi domain change. In this case, you can try the solution as below:

pip --index-url=http://pypi.python.org/simple/ --trusted-host pypi.python.org install pytesseract

另一个类似的案例，答案很好:pip 总是无法通过 ssl 验证

Another similar case with an excellent answer: pip always fails ssl verification

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