解决Python下载Jupyter时遇到的问题（pip版本过低）

首先安装jupyter 的前提是需要提前安装python 3.3版本及以上。然后输入 pip install jupyter,出现下面问题

python -V //在命令行窗口输入，验证python的版本

pip install jupyter

最后出现

[notice] A new release of pip available: 22.3.1 -> 23.0.1
[notice] To update, run: python.exe -m pip install --upgrade pip

 说明pip版本过低，输入 python.exe -m pip install –upgrade pip.

C:\Users\唐文杰>python.exe -m pip install --upgrade pip
Looking in indexes: http://mirrors.aliyun.com/pypi/simple/
Requirement already satisfied: pip in d:\python.last\lib\site-packages (22.3.1)
WARNING: The repository located at mirrors.aliyun.com is not a trusted or secure host and is being ignored. If this repository is available via HTTPS we recommend you use HTTPS instead, otherwise you may silence this warning and allow it anyway with '--trusted-host mirrors.aliyun.com'.

出现这个问题

WARNING: The repository located at mirrors.aliyun.com is not a trusted or secure host and is being ignored. If this repository is available via HTTPS we recommend you use HTTPS instead, otherwise you may silence this warning and allow it anyway with '–trusted-host mirrors.aliyun.com'.

通过查找资料(32条消息) 已解决（pip报错）WARNING: The repository located at mirrors .aliyun.com is not a trusted or secure host and_袁袁袁袁满的博客-CSDN博客，发现需要设置信任的镜像地址

在pip命令后面加上--trusted-host mirrors.aliyun.com，

pip install jupyter -i http://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com

最后只是解决了pip在安装第三方包的时候，在 pip install 第三方包 后面加 新的镜像源地址，再加--trusted-host mirrors.aliyun.com，

pip更新问题还存在