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It is important to note that if we were to call a Jupyter notebook through the terminal without specifying sparknotebook, our Spark session will never be initiated and we will receive an error when executing the SparkContext script.

We can access a traditional Jupyter notebook by executing the following at the terminal:

jupyter-notebook

Once we start the notebook, we can try and execute the same script for sc.master as we did previously, but this time we will receive the following error: