Jupyter 笔记本无法启动

Question

I installed Anaconda today, but have been facing issues to launch Jupyter notebook. I tried out solutions online, such as starting it from the command prompt, but nothing has worked.

When I try to open, it gives me this error:

Traceback (most recent call last): File "C:\Users\Avi\anaconda3\Scripts\jupyter-notebook-script.py", line 6, in from notebook.notebookapp import main

File "C:\Users\Avi\anaconda3\lib\site-packages\notebook\notebookapp.py", line 51, in from zmq.eventloop import ioloop

File "C:\Users\Avi\AppData\Roaming\Python\Python38\site-packages\zmq_ init _.py", line 47, in from zmq import backend

File "C:\Users\Avi\AppData\Roaming\Python\Python38\site-packages\zmq\backend_ init _.py", line 40, in reraise(*exc_info)

File "C:\Users\Avi\AppData\Roaming\Python\Python38\site-packages\zmq\utils\sixcerpt.py", line 34, in reraise raise value

File "C:\Users\Avi\AppData\Roaming\Python\Python38\site-packages\zmq\backend_ init _.py", line 27, in _ns = select_backend(first)

File "C:\Users\Avi\AppData\Roaming\Python\Python38\site-packages\zmq\backend\select.py", line 28, in select_backend mod = import (name, fromlist=public_api)

File "C:\Users\Avi\AppData\Roaming\Python\Python38\site-packages\zmq\backend\cython_ init _.py", line 6, in

from. import (constants, error, message, context, ImportError: cannot import name 'constants' from partially initialized module

'zmq.backend.cython' (most likely due to a circular import) (C:\Users\Avi\AppData\Roaming\Python\Python38\site-packages\zmq\backend\cython_ init _.py)

Answer 1

Try to create a conda environment 'test' with a specific python environment, activate the environment and then run jupyter notebook. On anaconda prompt run the below commands.

conda create -n test "python>=3.5,<3.8" ipython 
conda activate test
jupyter notebook