Can't launch Jupyter Notebook at all - python

I recently installed the Anaconda Navigator (Anaconda 2) on a Windows 8.1 machine.
If I launch Jupyter Notebook from the Anaconda window, I am met with a 'Page cannot be displayed' error in my browser (Chrome).
I have tried launching Jupyter Notebook from the Anaconda Prompt (no notable error message output). I have also tried opening the Notebook in a different browser (Firefox), and I have tried running the Prompt in Administrator mode. No luck.
I have Jupyter Notebook version 5.6.0 according to the Navigator, but if I type jupyter --version at the prompt it says 4.4.0 (wondering if this is a problem?)
I kind of expected to be able to launch a Notebook right off the bat after installing Anaconda. Is there some set-up I have missed?
(Edit) Tried a few more things, after reading the Jupyter Notebook docs. Tried replacing 'localhost' in the URL with 127.0.0.1, and tried opening the link Chrome with --disable-web-security. Didn't help.

Steps which i will advice:
1) Open your command prompt in the directory which contains your notebook or where you want to create new notebook.
2) Write jupyter notebook in cmd and press enter.
If jupyter notebook is properly installed then it will certainly open, else try reinstalling it.
Note: You can always update your jupyter notebook via conda or pip. At time if you update or install package/IDE via pip, Anaconda terms it as "broken link" and give issue.

Related

Jupyter notebook won't launch after writing "jupyter notebook" in terminal

I have been searching this problem since a while, but can't find a solution. I am working in Windows 10.
After I activate any virtual environment and I write "jupyter notebook", the terminal gets stucked and nothing happens, like in the picture:
No errors appear, I can't Ctrl+C to kill terminal and no browser page appears.
The "jupyter --help" command works, but any other subcommand (like jupyter lab, jupyter nbclassic or jupyter run) doesn't
I tried to do the following, with no results:
Uninstall and install jupyter again
I tried to lunch jupyter notebook with Anaconda Navigator
I tried to open a browser and go to "http://localhost:8889/tree", using different port values
I tried to restart my laptop
Does anyone have any idea what is going on?
Well,
If you've re-installed Anaconda with the default settings, it should set up PATH correctly. So I hope the error is not with PATH environment variable
Try the following:
If Jupyter gives an error that it can’t find notebook, check with pip or conda that the notebook package is installed.
Try running jupyter-notebook (with a hyphen). This should normally be the same as jupyter notebook (with a space), but if there’s any difference, the version with the hyphen is the ‘real’ launcher, and the other one wraps that.
It turned out that jupyter notebook was not starting because I could not ping my localhost (127.0.0.1) because of some bad network settings.
After running netsh winsock reset in a cmd terminal to reset the network settings, I could ping the localhost and jupyter notebook started to work again.

Can open jupyter notebook in browser but cannot open in vscode?

I always use jupyter notebook in my chrome notebook, and I find I can use vscode to achieve open jupyter and want to try it.
So I use the anaconda in my WIN10 system to create a jupyter notebook, and I check it's okay to open in my browser.
Then I use this command in my vscode
ctrl+shift+P
and then click the line "jupyter: specify the jupyter server for connection". Then put the jupyter link with token into the "Existing" and enter, but nothing happens even without a error.
More information:
I install the jupyter extensions in my vscode, like the "Jupyter","Jupyter keymap" and "Jupyter notebook renderers"
I can use SSH link to my remote linux server and open the remote .ipynb files in my vscode then I can edit and run code.
I am using: anaconda 3 vs code 1.66.2 windows 10. Please help, and let me know if any more information is required.
Sorry for no pictures as I have not enough reputation. I upload a video in Youtube (https://youtu.be/p_TYceK9dkI).
I guess Jupyter in vscode can not used as Jupyter in browser? (for the variables vanished when I close my vscode)
You should install jupyter notebook extension so that you can run jupyter on vscode.

JupyterNotebook Kernel connection

I tried to use the Jupyter Notebook application as usual but, I could not connect to the Kernel ( python(base) ) when I launched the the jupyter notebook from my CMD line,the notebook launched fine but it was impossible to execute any code since it couldn’t connect to the kernel.
But when I launch the jupyter notebook from the anaconda navigator, it works well and connects to the kernel.
I have looked at documentation and all the threads that I could find but nothing solved my solution of connecting with the kernel. I tried downgrading tornado, re-installing everything but it did not work. I would be very grateful if someone could tell me what i am doing wrong.
The below screenshot shows, the jupyter notebook launched from anaconda navigator and the kernel was connected:
The below screenshots show the jupyter notebook was launched from the cmd, and the connection to the kernel was not established:
try writing conda if it shows you an error then you should check whether conda path variable is added or you will need to run this jupyter notebook in anaconda prompt.

Just installed Jupyter using Anaconda but can't run it using terminal. Says command not found

I just bought my very first Mac after using Windows my entire life and have been trying to install things. I am also still kind of a beginner at programming.
I installed Anaconda for Python 2.7 version, and then I installed the 3.7 version right after.
I tried going to terminal and typing jupyter notebook but it says:
zsh: command not found: jupyter
I am able to launch a jupyter notebook (I think) when I search for jupyter notebook in spotlight and executing the top hit.
I've been reading a lot on forums about this issue and see a lot of people talking about PATH which I am not really sure about.
I've seen people also post their which python information and theirs seem very different from mine:
which python3
usr/bin/python3
which python
usr/bin/python
Any help would be appreciated! Still learning how to set up this Mac. Thank you.
You might want to refer to this link https://jupyter-notebook-beginner-guide.readthedocs.io/en/latest/execute.html
3.1.2. Change Jupyter Notebook startup folder (Mac OS)
To launch Jupyter Notebook App:
Click on spotlight, type terminal to open a terminal window.
Enter the startup folder by typing cd /some_folder_name.
Type jupyter notebook to launch the Jupyter Notebook App The notebook interface will appear in a new browser window or tab.
From what I can understand you are not changing to the startup directory of Jupyter.
You need to add jupyter to your path.
In your terminal, type in the following command:
export PATH="/PUT JUPYTER PATH HERE:$PATH"
Then try jupyter notebook
Reasoning: If installing using pip install --user, you must add the user-level bin directory to your PATH environment variable in order to launch jupyter lab

Jupyter Notebook 5.7.6 (last update) shows blank page [duplicate]

Screenshot of Jupyter Notebook Session:
I am trying to launch a Jupyter notebook using anaconda prompt. The browser session opens but no contents are visible on the page.
Does anyone have any idea how to mitigate this?
Screenshot of Anaconda Prompt:
Please refer to https://github.com/jupyter/notebook/issues/4467
I encounter similar trouble. So I just do 3 steps:
(1) uninstall Jupyter Notebook 5.7.6
conda uninstall notebook
(2) install old version
conda install notebook=5.7.4
(3) After lauching Jupyter Notebook 5.7.4
Press CTRL+R or CTRL+Shift+R to clear the cache
Then Jupyter Notebook works normally now.
Hope it's helpful to you.

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