[IPython-dev] Loading nbextension on widget instantiation

[Nicholas Bollweg]

We have also encountered this issue: we have, for the moment, dealt with it
with a mixin for our python-side widget classes that does a require against
the _view_name:

from IPython.display import display, Javascript
> import time
>
> js_path = "/nbextensions/ipynbdbtk/js"
>
> class ViewLoaderMixin(object):
>     def __init__(self, *args, **kwargs):
>         script = """require(['%(path)s/%(view)s.js'], function(){
>             console.log('%(view)s loaded');
>         });""" % {
>             "path": js_path,
>             "view": self._view_name
>         }
>         display(Javascript(script))
>         super(ViewLoaderMixin, self).__init__(*args, **kwargs)
>

I think this is equivalent to your solution (didn't know about
load_extensions: that would make it more terse).

I second being able to document the location of the file, but don't know
enough about the specifics to have an opinion on the approach.

Speaking of documentation: a template for building extensions with widgets
that that embodied the baseline of knowledge spread all over the community
would be great. I have used paste before, which seems kind of heavy these
days. Cookiecutter looks good:

> https://github.com/audreyr/cookiecutter#available-cookiecutters
>
or yeoman:

> http://yeoman.io/


Yeoman may actually be preferable, in that one would be more inclined to
use good front-end practices like bower, less/sass, linitng, etc. even
while developing for python.
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