Detect if Jupyter extension installed?

[Titus Barik]

Hi all,

I have an extension for Jupyter notebooks with an object on the Python side that overrides _ipython_display_.

Unfortunately if the user forgot to install the corresponding JavaScript front-end extension via nbextension then the _ipython_display_ will not correctly display the widget (it's usually just blank since the front-end assets return 404).

Is there a way to detect whether an extension has been installed?

Thanks,

Titus

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Titus Barik, PE <ti...@barik.net>