There was a problem confirming the ssl certificate: HTTPSConnectionPool(host=‘pypi.org‘,port=443)

ciky奇 最新推荐文章于 2023-04-25 01:43:14 发布 21942

在配置好anaconda环境后（如遇到conda指令无法安装库或者安装较慢问题参见文末），想用pip install安装相应的包（我这边的示例安装yacs这个库），发现出现如下的错误：

Could not fetch URL https://pypi.org/simple/yacs/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/yacs/ (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1076)'))) - skipping

类似是你的电脑在打开pypi.org这个网站的时候提示有安全问题，报了证书相关的错误。

解决方法 是你将该网站指定为可信任就行了~

pip install --trusted-host pypi.org  安装的包名字.whl

如果这之后还出现如下问题：

ERROR: Could not install packages due to an EnvironmentError: HTTPSConnectionPool(host=' files.pythonhosted.org ', port=443): Max retries exceeded with url: /packages/64/c2/b80047c7ac2478f9501676c988a5411ed5572f35d1beff9cae07d321512c/PyYAML-5.3.1.tar.gz (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1076)')))

那么再把 files.pythonhosted.org 设置成受信任就OK了。

pip install --trusted-host pypi.org --trusted-host files.pythonhosted.org 安装的包名字.whl

至此，我这边就不再报这个证书问题了~

在之前用conda指令安装库或者创建环境时遇到无法安装（由于源的问题）的情况，在这也说下源配置的问题：

参考的文章很多，比如： anaconda conda 切换为国内源 和 Anaconda 3 更换国内清华源教程（看不懂你打我）

我这边在ubuntu下配置的condarc内容如下（其中#表示注释掉了那行，网上很多源中地址是https，我这边试了下http的成功了，算是提供参考，具体问题可参考上面两篇链接）——

channels:
  - http://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/
  - http://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/noarch
  - http://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/
  - http://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/noarch
  - http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/conda-forge/
  - http://mirrors.aliyun.com/pypi/simple/
  - http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/fastai/
  - http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/pytorch/
  #- defaults
show_channel_urls: true
#channel_alias: https://mirrors.tuna.tsinghua.edu.cn/anaconda
#default_channels:
#  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main
#  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
#  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/r
#  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/pro
#  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/msys2
#custom_channels:
#  conda-forge: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
#  msys2: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
#  bioconda: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
#  menpo: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
#  pytorch: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
#  simpleitk: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud

其中defaults建议注释掉，默认是anaconda的源下载，比较慢~

There was a problem confirming the ssl certificate: HTTPSConnectionPool(host=‘pypi.org‘,port=443) Could not fetch URL https://pypi.org/simple/yacs/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/yacs/ (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERT. 使用python直接使用 pip install xx时，出现 Could not fetch URL https :// pypi .python. org /simple/requests/: There was a problem confirm ing the ssl certificate : [ SSL : CERTIFICATE _VERIFY_FAILED] certificate verify faile 这种错误，可以用以下方法解决。本人也是拜访无数帖子，尝试了几个小时弄好的，希望可以给大家节省点时间。 一、错误提示 碰到这个 问题 ，主要原因是网站 pypi .python. org 在国内是被墙 Could not fetch URL https :// pypi . org /simple/pytest-html/: There was a problem confirm ing the ssl certificate : HTTPS Connection Pool ( host =' pypi . org ', port = 443 ): Max retries exceeded with url: /simple/pytest-html/ (Caused by SSL Error( SSL E