The graphs are not appearing in JupyterLab Notebook and the error message says “JavaScript output is disabled in JupyterLab”.

At first, it seems that from Notebook itself I just need to enable it but few site says it Jupyterlab does not support it yet is frustrating.

#matplotlib submodule pyplot

import matplotlib.pyplot as plt

import numpy as np

x = np.arange(0,100,0.5)

y = 2 * np.sqrt(x)

plt.plot(x,y)

plt.show()
"JavaScript output is disabled in JupyterLab"

So to solve this issue or enable extension first stop your notebook and use below command. 

C:\Users\victor>jupyter nbextension enable --py --sys-prefix widgetsnbextension

Enabling notebook extension jupyter-js-widgets/extension...

- Validating: ok

Now invoke “jupyter lab” and you can see your plots:

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