404 error when rendering about ipyvega HOT 5 OPEN

Downgrade to 3.5 works

from ipyvega.

Same here -- I think this issue is related to 5acd121. Specifically, this 404 comes from trying to require "jupyter-vega" without configuring it.

I don't understand all the internals of how the nbextension gets loaded, but I do know that running jupyter nbextension enable vega --py --sys-prefix activates jupyter-vega/index, NOT jupyter-vega/extension. And, if I manually edit the notebook.json file to say jupyter-vega/extension, it still doesn't work, because index.js executes before extension.js does.

from ipyvega.

Furthermore, this extension appears to have depended on the execution order/timing even before 3.6. Specifically, the check for an already-rendered static image only works if the JS execution happens right away (before an image, later in the outputs array, is rendered). When the require call does not return immediately, because the extension has not been loaded yet, the end result is that the extension preferentially shows the PNG output instead of the interactive output.

Edit: I cannot seem to get this extension to do what I want (render the interactive version if possible, fall back to the PNG version where that isn't possible) no matter what versions I use -- the extension has had this logic from the time PNG rendering was introduced and Jupyter notebooks have been loading extensions asynchronously for a very long time. Could this possibly be the intended behavior? I find that extremely surprising.

from ipyvega.

Downgrade to 3.5 works

Confirmed downgrading fixes the issue (no plot showing in the cell output, no errors in the notebook) for me as well.

from ipyvega.

@cpsievert I am running into this issue as well. Can you help fix it?

from ipyvega.