问题描述：
安装trantsformers时出现以下问题，按照网上的方法改了很久还是不行，后来终于改好了
(base) root@adbb5f70256b:~# pip install trantsformers
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 (_ssl.c:1129)’))’: /simple/transformers/
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 (_ssl.c:1129)’))’: /simple/transformers/
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 (_ssl.c:1129)’))’: /simple/transformers/
WARNING: 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 (_ssl.c:1129)’))’: /simple/transformers/
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 (_ssl.c:1129)’))’: /simple/transformers/
Could not fetch URL https://pypi.org/simple/transformers/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host=‘pypi.org’, port=443): Max retries exceeded with url: /simple/transformers/ (Caused by SSLError(SSLCertVerificationError(1, ‘[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate (_ssl.c:1129)’))) - skipping
ERROR: Could not find a version that satisfies the requirement transformers (from versions: none)
ERROR: No matching distribution found for transformers
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 (_ssl.c:1129)’))) - skipping
解决方法：
1.首先，请检查一下服务器网络连接是否正常（我的没报网络错误，但是确实是断网了）断网的情况下啥也安装不了。
2.网络连接正常的情况下，依次尝试以下命令：
pip install trantsformers
仍然报以上错误，接下来通过国内镜像源并添加信任（网上很多人都是这么做的，但是我的仍然报错）
pip install transformers -i http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/pytorch/ --trusted-host mirrors.tuna.tsinghua.edu.cn
不行又换了豆瓣镜像源
pip install pytorch_transformers -i https://pypi.douban.com/simple
这个没添加信任竟然可以了
也不明白具体因为什么。类似的问题可以多尝试一下。
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