Lesson 17: Launching JupyterLab

Method 1: Launch JupyterLab from the desired folder (recommended) Open Anaconda Prompt (or Command Prompt if Jupyter is on your PATH). Change to the folder containing your notebook:

cd "D:\Projects\SAS\Week1"

Method 2: Start JupyterLab in a specific folder from anywhere You can specify the working directory directly:

jupyter lab --notebook-dir="D:\Projects\SAS\Week1"

Method 3: Open an individual notebook directly You can also specify the notebook file:

jupyter lab "D:\Projects\SAS\Week1\Week1_Part1.ipynb"

!jupyter lab --version

4.2.5

Since you're using JupyterLab 4.2.5 (Anaconda on Windows), JupyterLab 4 no longer automatically loads a custom.css file the way the classic Notebook did. Here are the practical options.

Use the "Custom CSS" extension

C:\Users\<your_username>\.jupyter\custom\

Create a folder named custom.css in the above folder.

.jp-Notebook {
   max-width: 1100px !important;
   margin-left: auto !important;
   margin-right: auto !important;
}