In general, stackoverflow question should try to only ask one question at the time. That being said, I’ll try to answer the questions as best I can: ipywidgets is the main way, yes. It is what people mean when they talk about notebook widgets. There is an issue tracking general JS in jupyterlab on the … Read more
I tried everything you mentioned in a new environment using conda and I had another issue related to the version of ipywidgets (a bug found in Github with comments saying that got solved after using last version). I solved the problem I had installing last version of ipywidgets. Here is my process: Create a new … Read more
Update 2: core ipywidgets now work in Colab, as do many custom widgets! In particular, the base, controls, FileUpload, Image, and output widgets all work in colab. See https://github.com/googlecolab/colabtools/issues/498 for more details. (Tweaked original answer): ipywidgets don’t Just Work with Colab: we have a different security model, wherein each output is in its own iframe … Read more
With the new version of ipywidgets, I ran into this problem, but then I found on their github readme that you now need to follow pip install ipywidgets with jupyter nbextension enable –py widgetsnbextension Note: To those using virtual environments (including conda environments) the recommended way to activate the extension is to run jupyter nbextension … Read more
JupyterLab now prefers a model where arbitrary javascript is no longer allowed to be embedded in a cell’s output, which is how many interactive Jupyter Notebook modules used to work. They now ask that modules with interactivity create a JupyterLab extension. ipywidgets provides @jupyter-widgets/jupyterlab-manager extension which satisfies this requirement. When using ipywidgets 7.6 or newer … Read more