如何将jupyter脚本添加到路径

Question

我总是在添加路径时苦苦挣扎。

安装jupyter笔记本后，它会发出警告

The scripts jupyter, jupyter-migrate and jupyter-troubleshoot are installed in '/Users/gangzhao/Library/Python/3.7/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  The scripts jupyter-kernel, jupyter-kernelspec and jupyter-run are installed in '/Users/gangzhao/Library/Python/3.7/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  The script jsonschema is installed in '/Users/gangzhao/Library/Python/3.7/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  The script jupyter-trust is installed in '/Users/gangzhao/Library/Python/3.7/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  The script pygmentize is installed in '/Users/gangzhao/Library/Python/3.7/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  The script jupyter-nbconvert is installed in '/Users/gangzhao/Library/Python/3.7/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  The scripts iptest, iptest3, ipython and ipython3 are installed in '/Users/gangzhao/Library/Python/3.7/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  The scripts jupyter-bundlerextension, jupyter-nbextension, jupyter-notebook and jupyter-serverextension are installed in '/Users/gangzhao/Library/Python/3.7/bin' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  The script jupyter-console is installed in '/Users/gangzhao/Library/Python/3.7/bin' which is not on PATH. 
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.

我发现了一个关于添加目录到PYTHONPATH的真正的good post。

但我还是想不通。

export PYTHONPATH="${PYTHONPATH}:/my/other/path"

我搞不清什么是PYTHONPATH，什么是/my/other/path

Answer 1

也许你应该试试在安装Anaconda时使用内置的jupyter笔记本。当我通过Anaconda安装Jupyter时，从来没有遇到过这样的问题。

Answer 2

不知道你是否已经修复了这个问题，但我最近在树莓派的零W上构建jupyter时也重现了同样的错误，所以我想我发布了一个解决方案。

我的连接是通过putty的ssh

首先，我通过pip3正常安装了jupyter，并且在垃圾桶上也收到了多个路径错误。已确认这一点，因为运行任何jupyter命令都会返回not found。

我的解决方案是只做一个服务，你可以通过首先找到jupyter二进制文件的位置来实现：which jupyter-lab。这应该返回二进制文件的路径，并且应该非常类似于：/home/pi/.local/bin/jupyter-lab。记录此信息，因为在/etc/systemd/system/中创建文件时需要此信息

创建服务：

sudo nano /etc/systemd/system/jupyter.service

使用以下内容填充文件：

[Unit]
    Description=Jupyter Lab
[Service]
    Type=simple
    PIDFile=/run/jupyter.pid
    ExecStart=/bin/bash -c "/home/pi/.local/bin/jupyter-lab --ip="0.0.0.0" --no-browser --notebook-dir=/home/pi/notebooks"
    User=pi
    Group=pi
    WorkingDirectory=/home/pi/notebooks
    Restart=always
    RestartSec=10
[Install]
    WantedBy=multi-user.target

请注意，ExecStart=是您放置先前找到的二进制文件的路径的位置。这也是配置jupyter-lab的参数的地方，包括IP和notebook directory。需要注意的是，我已经为此设置了我的目录。

接下来，我们可以轻松地运行此服务：

sudo systemctl start jupyter.service

或者停止它：

sudo systemctl stop jupyter.service

我想让服务在每次启动时启动：

sudo systemctl enable jupyter.service
sudo systemctl daemon-reload

检查服务状态：

sudo systemctl status jupyter.service

这将为您提供有关从jupyter运行的ServerApp的有用服务信息。此处还将显示用于连接到您的笔记本的令牌和URL。

希望这对解决任何问题有帮助！