Question

“Launch Classic Notebook” option is gone from the JupyterLab Help menu
The deprecation of Notebook in favor of Lab is going on and since JupyterLab 4.0.0 the dependency on Notebook and with it also the useful backward compatibility option “Launch Classic Notebook” was removed from JupyterLab Help menu. Any workarounds?

Answer 1

Jawaban:

Yes, with the removal of the "Launch Classic Notebook" option from the JupyterLab Help menu, you can still access the classic Jupyter Notebook by following these workarounds:

Accessing Jupyter Notebook from JupyterLab's Launcher:

JupyterLab still includes the Jupyter Notebook interface as a separate application. You can launch it by following these steps:

Click on the "Launcher" button in the left sidebar of JupyterLab (it looks like a rocket icon).

In the launcher, you should see an option to launch "Notebook". Click on it, and the classic Jupyter Notebook interface will open in a new tab.

Using the Command Line:

You can also start the classic Jupyter Notebook from the command line by executing the following command:

"jupyter notebook"

This will start the classic Jupyter Notebook server, and you can access it by opening the provided URL in your web browser.

These workarounds allow you to continue using the classic Jupyter Notebook interface even though the option to launch it from the JupyterLab Help menu has been removed.

Penjelasan:

Answer 2

Jawaban:

Yes, there are a couple of workarounds you can try if you need to access the classic Jupyter Notebook interface from JupyterLab:

1. Use the URL: You can directly access the classic Jupyter Notebook interface by appending "/tree" to your JupyterLab URL. For example, if your JupyterLab URL is "http://localhost:8888/lab", you can access the classic Notebook interface by visiting "http://localhost:8888/tree". This will take you to the familiar file browser interface of Jupyter Notebook.

2. Keyboard shortcut: JupyterLab still supports a keyboard shortcut to launch the classic Jupyter Notebook interface. By default, you can use the following keyboard shortcut:

• Press "Esc" to activate command mode in JupyterLab.
• Then press "Shift + L" to launch the classic Notebook interface.

This shortcut should redirect you to the classic Jupyter Notebook interface.

3. Use the terminal: JupyterLab provides an integrated terminal. You can open a terminal in JupyterLab and use the command jupyter notebook to launch the classic Jupyter Notebook interface from the terminal. This will start a separate server running the classic Notebook interface, which you can access in your browser.

• Open the terminal in JupyterLab (click on the terminal icon in the left sidebar).
• Type jupyter notebook and press Enter.

• The classic Notebook server will start, and you can access it by following the provided URL in the terminal.

Please note that these workarounds may depend on your specific JupyterLab version and configuration. If none of these options work, you might consider installing and running the standalone Jupyter Notebook server alongside JupyterLab for a seamless transition between the two interfaces.