完整報(bào)錯(cuò)如下:
Cache entry deserialization failed, entry ignored
Could not fetch URL https://pypi.tuna.tsinghua.edu.cn/simple/pip/: There was a problem confirming the ssl certificate: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:748) - skipping
Requirement already up-to-date: pip in d:\anaconda3\envs\python36\lib\site-packages
You are using pip version 9.0.1, however version 23.0.1 is available.
You should consider upgrading via the 'python -m pip install --upgrade pip' command.
解決方案:換源安裝,清華源不好使,換豆瓣源安裝
代碼如下:文章來(lái)源:http://www.zghlxwxcb.cn/news/detail-671802.html
python -m pip install --upgrade pip -i https://pypi.douban.com/simple
結(jié)果一次成功文章來(lái)源地址http://www.zghlxwxcb.cn/news/detail-671802.html
(python36) C:\WINDOWS\system32>python -m pip install --upgrade pip -i https://pypi.douban.com/simple
Collecting pip
Downloading https://pypi.doubanio.com/packages/a4/6d/6463d49a933f547439d6b5b98b46af8742cc03ae83543e4d7688c2420f8b/pip-21.3.1-py3-none-any.whl (1.7MB)
100% |████████████████████████████████| 1.7MB 750kB/s
Installing collected packages: pip
Found existing installation: pip 9.0.1
Uninstalling pip-9.0.1:
Successfully uninstalled pip-9.0.1
Successfully installed pip-21.3.1
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