无法运行 jupyter-lab/jupyter-notebook答案

【问题标题】：not able to run jupyter-lab/ jupyter-notebook无法运行 jupyter-lab/jupyter-notebook
【发布时间】：2021-07-07 09:27:07
【问题描述】：

在多次重新安装 anaconda 和 jupyter-notebook 之后，我遇到了同样的错误

    Traceback (most recent call last):
  File "c:\users\hp\appdata\local\programs\python\python39\lib\runpy.py", line 197, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "c:\users\hp\appdata\local\programs\python\python39\lib\runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "C:\Users\hp\AppData\Local\Programs\Python\Python39\Scripts\jupyter-notebook.exe\__main__.py", line 4, in <module>
  File "c:\users\hp\appdata\local\programs\python\python39\lib\site-packages\notebook\notebookapp.py", line 78, in <module>
    from .services.kernels.kernelmanager import MappingKernelManager, AsyncMappingKernelManager
  File "c:\users\hp\appdata\local\programs\python\python39\lib\site-packages\notebook\services\kernels\kernelmanager.py", line 18, in <module>
    from jupyter_client.session import Session
  File "c:\users\hp\appdata\local\programs\python\python39\lib\site-packages\jupyter_client\__init__.py", line 4, in <module>
    from .connect import *
  File "c:\users\hp\appdata\local\programs\python\python39\lib\site-packages\jupyter_client\connect.py", line 21, in <module>
    import zmq
  File "C:\Users\hp\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\zmq\__init__.py", line 19, in <module>
    _delvewheel_init_patch_0_0_12()
  File "C:\Users\hp\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\zmq\__init__.py", line 10, in _delvewheel_init_patch_0_0_12
    os.add_dll_directory(libs_dir)
  File "c:\users\hp\appdata\local\programs\python\python39\lib\os.py", line 1111, in add_dll_directory
    cookie = nt._add_dll_directory(path)
FileNotFoundError: [WinError 2] The system cannot find the file specified: 'C:\\Users\\hp\\AppData\\Local\\Packages\\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\\LocalCache\\local-packages\\Python39\\site-packages\\pyzmq.libs'

重新安装pyzmq -

pip install pyzmq

另外，尝试使用 wheel 文件安装 pyzmq，也没有成功。似乎是什么问题？

【问题讨论】：

标签： python jupyter-notebook anaconda jupyter-lab python-3.9

【解决方案1】：

我希望您的问题类似于this one。

解决方案是降级到pyzmq 21 版：

pip install pyzmq==21.0.0

或安装 VS C++ Redistributable 库（与第 21 版相比，这是 change in v. 22）。

【讨论】：