在vs代码中安装flask时出现SSL错误

Question

我尝试在虚拟环境中的 vs 代码中安装 flask，但出现一些 SSL 错误。 在我的虚拟环境中，我尝试通过编写来安装 flask

pip install flask

然后我得到这个错误，

WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate in certificate chain (_ssl.c:997)'))': /simple/flask/
WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after 
connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] 
certificate verify failed: self signed certificate in certificate chain (_ssl.c:997)'))': 
/simple/flask/
WARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after 
connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] 
certificate verify failed: self signed certificate in certificate chain (_ssl.c:997)'))': 
/simple/flask/
: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after 
connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] 
certificate verify failed: self signed certificate in certificate chain (_ssl.c:997)'))': 
/simple/flask/
WARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after 
connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] 
certificate verify failed: self signed certificate in certificate chain (_ssl.c:997)'))': 
/simple/flask/
Could not fetch URL https://pypi.org/simple/flask/: There was a problem confirming the ssl 
certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: 
/simple/flask/ (Caused by SSLError(SSLCertVerificationError(1, '[SSL: 
CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate in certificate 
chain (_ssl.c:997)'))) - skipping
ERROR: Could not find a version that satisfies the requirement flask (from versions: none)
ERROR: No matching distribution found for flask
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(SSLCertVerificationError(1, '[SSL: 
CERTIFICATE_VERIFY_FAILED] certificate verify failed: self 
signed certificate in certificate chain (_ssl.c:997)'))) - skipping

如何解决这个问题。

相同类型的 SSL 错误我已经在我的 anaconda 提示和 anaconda 导航器中得到了，当我尝试安装虚拟环境时，现在我意识到由于这个 SSL 认证错误，我什至无法更新任何 package。

anaconda 提示中的 SSL 错误类似于，

CondaSSLError: Encountered an SSL error. Most likely a certificate verification issue.

Exception: HTTPSConnectionPool(host='repo.anaconda.com', port=443): Max retries exceeded with 
url: /pkgs/main/win-64/current_repodata.json 
(Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate 
verify failed: self signed certificate in certificate chain (_ssl.c:997)')))

我确实需要帮助，因为这显然阻碍了我的学习之旅。

Answer 1

这似乎是因为ssl_verify阻止了它。 您可以尝试运行以下命令并将其更改为false（此方法存在风险）：

conda config --set ssl_verify False

另一种安全的方法是让 conda 知道您的 SSL 证书所在的位置：

conda config --set ssl_verify <pathToYourFile>.crt

您可以阅读此问题以了解更多详细信息。