Force Jupyter Notebook *not* to open a web browser
Question:
I’m running Jupyter notebooks (Python 3) on a remote cluster that I’m connected/tunneled to over SSH.
Jupyter’s default behavior is to try to open the dashboard in a web browser when it launches — aparently (I only just updated), at some point they switched to the Python 3 webbrowser library for this.
According to webbrowser‘s documentation:
text-mode browsers will be used if graphical browsers are not available or an X11 display isn’t available.
This is exactly what happens. I run jupyter notebook, webbrowser launches elinks, and my one-time authentication token gets eaten, preventing me from connecting to the notebook.
Jupyter isn’t configured to use a browser — c.NotebookApp.browser is commented out in my config — and running BROWSER="" jupyter notebook doesn’t help either.
How can I force Jupyter not to open any browser?
Answers:
jupyter-notebook --help includes the following:
--no-browser
Don't open the notebook in a browser after startup.
jupyter notebook --generate-config
Then edit ~/.jupyter/jupyter_notebook_config.py and Add
NotebookApp.open_browser = False
You can achieve this by specifying –no-browser:
$ jupyter notebook --no-browser
I also recommend that you specify the port you want to use:
jupyter notebook --no-browser --port= <port_number>
ie:
$ jupyter notebook --no-browser --port=8888
You have to keep in mind that when you do this, jupyter will provide you with a token on the console, token that the server will ask you when connect remotely through the browser.
If you want to simplify this procedure, you can set a password that is easier for you to remember. To do this, you can run in a console:
$ jupyter notebook --generate-config
and later:
$ jupyter notebook password
This last command will ask you for the password that you wish to use to enter remotely.
Regards!
I’m running Jupyter notebooks (Python 3) on a remote cluster that I’m connected/tunneled to over SSH.
Jupyter’s default behavior is to try to open the dashboard in a web browser when it launches — aparently (I only just updated), at some point they switched to the Python 3 webbrowser library for this.
According to webbrowser‘s documentation:
text-mode browsers will be used if graphical browsers are not available or an X11 display isn’t available.
This is exactly what happens. I run jupyter notebook, webbrowser launches elinks, and my one-time authentication token gets eaten, preventing me from connecting to the notebook.
Jupyter isn’t configured to use a browser — c.NotebookApp.browser is commented out in my config — and running BROWSER="" jupyter notebook doesn’t help either.
How can I force Jupyter not to open any browser?
jupyter-notebook --help includes the following:
--no-browser
Don't open the notebook in a browser after startup.
jupyter notebook --generate-config
Then edit ~/.jupyter/jupyter_notebook_config.py and Add
NotebookApp.open_browser = False
You can achieve this by specifying –no-browser:
$ jupyter notebook --no-browser
I also recommend that you specify the port you want to use:
jupyter notebook --no-browser --port= <port_number>
ie:
$ jupyter notebook --no-browser --port=8888
You have to keep in mind that when you do this, jupyter will provide you with a token on the console, token that the server will ask you when connect remotely through the browser.
If you want to simplify this procedure, you can set a password that is easier for you to remember. To do this, you can run in a console:
$ jupyter notebook --generate-config
and later:
$ jupyter notebook password
This last command will ask you for the password that you wish to use to enter remotely.
Regards!