在MacOs上，这对我来说很管用:

/Users/`userName`/opt/anaconda3/bin/jupyter_mac.command

在终端中执行

export PATH=~/anaconda3/bin:$PATH

为我工作过Ubuntu 16.10, Python3, Anaconda3

更新

在~/中添加路径。Bashrc或~/。Zshrc(如果您正在使用ZSH bash)文件

vi ~/.bashrc

向文件中添加以下行

PATH=~/path/to/anaconda:$PATH

用以下命令关闭文件

esc + : + wq

尝试“pip3 install jupyter”，而不是pip。这对我很管用。

在Mac OS上，您需要导出~/。在$PATH变量中使用local/bin。

# Edit the bash profile:
$ vim ~/.bash_profile

# Add this line inside ~/.bash_profile:
export PATH=$PATH:~/.local/bin

# Update the source:
$ source ~/.bash_profile

# Open Jupyter:
$ jupyter notebook

对我来说，在激活虚拟环境之前，它不起作用。

安装 jupyterlab。

如果你得到这个错误:

ERROR: After October 2020 you may experience errors when installing or updating packages. This is because pip will change the way that it resolves dependency conflicts.

We recommend you use --use-feature=2020-resolver to test your packages with the new resolver before it becomes the default.

requests 2.25.1 requires idna<3,>=2.5, but you'll have idna 3.1 which is incompatible.

用这个:

pip3 install jupyterlab --use-feature=2020-resolver