Jupyter command `jupyter-lab` not found. 问题解决

1.问题描述

C:\Users\Bubble> jupyter lab
Traceback (most recent call last):
  File "d:\program files (x86)\python38-32\lib\runpy.py", line 194, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "d:\program files (x86)\python38-32\lib\runpy.py", line 87, in _run_code
    exec(code, run_glob`在这里插入代码片`als)
  File "D:\Program Files (x86)\Python38-32\Scripts\jupyter.exe\__main__.py", line 7, in <module>
  File "d:\program files (x86)\python38-32\lib\site-packages\jupyter_core\command.py", line 285, in main
    command = _jupyter_abspath(subcommand)
  File "d:\program files (x86)\python38-32\lib\site-packages\jupyter_core\command.py", line 124, in _jupyter_abspath
    raise Exception(
Exception: Jupyter command `jupyter-lab` not found.

2.可尝试解决方法

• 1.添加jupyter lab所在文件夹到Path
  请看这位同学的Path方法

• 2.升级jupyter-lab

• 3.重装jupyter-lab（使用命令）

3.最终成功的方法

1.卸载jupyter

• 1.1 先试下这个
  先试一下这个链接的方法.
• 1.2 检查下是不是还残留jupyter的包，如下图圈红处。

  pip list
  

  

2.一 一卸载它们，全部卸载完毕

```python
pip uninstall -y jupyter
pip uninstall -y jupyter-client
```

3.安装python包

pip install jupyterlab