[FIXED] Jupyter Notebook | Bad address (C:\projects\libzmq\src\epoll.cpp:100)

Issue

I am working with python's latest version:

Python 3.10.2

I have installed Jupyter Notebook by using.

pip install jupyter

Later I want to start Jupiter notebook in cmd by writing:

Jupyter notebook

Previously it's working fine and smooth. The next day there occur a couple of errors. Here are some screenshots and text of the command window.

[This is the first error that I recieve at begining][1] [1]: https://i.stack.imgur.com/G1L4z.png

[After closing the program this error apperas][2] [2]: https://i.stack.imgur.com/B22k0.png

[Its the camand window about jupyter][3] [3]: https://i.stack.imgur.com/g71x7.png

Here is the text of comand window:

[W 20:36:29.590 NotebookApp] Notebook Desktop/AI Projects/NLP/Untitled.ipynb is not trusted
Bad address (C:\projects\libzmq\src\epoll.cpp:100)
[I 20:36:29.929 NotebookApp] Kernel started: 56297648-4e26-4a5b-8d25-1f990c6e422b, name: 
python3
Bad address (C:\projects\libzmq\src\epoll.cpp:100)
Exception in thread IOPub:
Traceback (most recent call last):
Bad address (C:\projects\libzmq\src\epoll.cpp:100)
File "C:\Users\ABDUL RAUF\AppData\Local\Programs\Python\Python310\lib\threading.py", line 
1009, in _bootstrap_innerself.run()
File "C:\Users\ABDUL RAUF\AppData\Local\Programs\Python\Python310\lib\threading.py", line 
946, in run
self._target(*self._args, **self._kwargs)
File "C:\Users\ABDUL RAUF\AppData\Local\Programs\Python\Python310\lib\site- 
packages\ipykernel\iostream.py", line 82, in _thread_main
self.io_loop.start()
File "C:\Users\ABDUL RAUF\AppData\Local\Programs\Python\Python310\lib\site- 
packages\tornado\platform\asyncio.py", line 199, in start

Versions of jupyter Notebook：

jupyter --version
Selected Jupyter core packages...
IPython          : 8.1.1
ipykernel        : 6.9.2
ipywidgets       : 7.7.0
jupyter_client   : 7.1.2
jupyter_core     : 4.9.2
jupyter_server   : not installed
jupyterlab       : not installed
nbclient         : 0.5.13
nbconvert        : 6.4.4
nbformat         : 5.2.0
notebook         : 6.4.10
qtconsole        : 5.2.2
traitlets        : 5.1.1

Solution

netsh winsock reset

fixes the issue for me. It seems like there is some VPN software modified your default winsock settings that bugged pyzmq.

Answered By - Tsar