widgets.FileUpload() not working

its me again…I experienced with the same notebook on Jupyter (instead of JupyterLab) and the widgets work! lots of time wasted, I do not know why it was not working on JupyterLab but remembered having seem some comments in the notes somewhere that some functions did not work on JupyterLab.

I hope this helps others,

I solved this on my Ubuntu Desktop machine (20.04 version) by installing the supposedly missing NODE.JS …as well as the before-mentioned ipywidgets via pip3.

Node.js definitely fixed the problem for me …it did require a restart. Good luck!

here’s a solution that worked for me in GCP Jupyter Lab, from jeffbiss