[IPython-dev] embedding js9 into a notebook

Gijs Molenaar gijsmolenaar at gmail.com
Thu Oct 1 08:45:43 EDT 2015

Hi all!  I'm trying to embed JS9 into a notebook, but I'm not successful
yet. I hope this is the right place to ask a question about this. JS9 is
the javascript version of DS9, an astronomical image viewer:


You can find my initial work here:


I could not really find documentation on how to create such a thing. My
idea was to create a python package which you can pip and load, just like
bokeh works.  I see multiple ways you can inject javascript into the
browser from the python code, but I think using
IPython.core.displaypub.publish_display_data is probably best.


I was assuming reading the javascript file like this and then executing it
with publish_display_data would be the same as loading it with a script
tag, but I keep getting all kind of errors about objects not defined:


So basically I have two questions:

 * Is this the right way to do such a thing? I find it a bit hard to find
out where the problems are, isn't it possible to serve the javascript
somewhere static?
 * What am I doing wrong loading javascript this way?


Gijs Molenaar
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