[IPython-dev] Adding attributes to .ipynb files

MinRK benjaminrk@gmail....
Fri Jun 15 15:31:39 CDT 2012

On Fri, Jun 15, 2012 at 1:30 PM, Jonathan Taylor <
jonathan.taylor@stanford.edu> wrote:

> Yes, that sounds exactly like what we want. As always, the ipython team is
> one step ahead. I guess this PR will happen sometime soon as there don't
> seem to be many issues on github?

Yes, finishing the review on this one is one of the last things to do
before cutting the beta.

> On Thu, Jun 14, 2012 at 5:09 PM, MinRK <benjaminrk@gmail.com> wrote:
>> You mean something like this<https://github.com/ipython/ipython/pull/1934>
>> ?
>> Adding your own (jsonable) data into those metadata dicts should be safe.
>>  I would recommend using your own prefix or subdict to avoid potential
>> collisions down the road.
>> On Thu, Jun 14, 2012 at 4:13 PM, Dennis Sun <dlsun@stanford.edu> wrote:
>>> Hi all,
>>> We're working on a project where we need notebook files that have some
>>> extra data attached to each cell. Because we would like to make sure that
>>> the files are still compatible with the iPython Notebook, what we're doing
>>> right now is including this metadata in the "json" attribute of the output
>>> of each cell and then "promoting" these attributes to the cell level at
>>> runtime. Thus, the notebook file is still a valid .ipynb file, but the
>>> metadata doesn't show up when the user loads the page.
>>> However, it seems right now that we can get away with adding the
>>> metadata directly at the cell level in the .ipynb file, since iPython
>>> Notebook simply passes over any keys that it doesn't know to look for. We
>>> would like to do this instead, since it is conceptually much cleaner, but
>>> we are worried about compatibility with future versions of iPython, which
>>> might enforce .ipynb files to follow a certain format.
>>> We were hoping that someone more knowledgeable about the state of
>>> iPython development could advise on whether or not it's safe to add our own
>>> attributes directly to the .ipynb files. It seems that this shouldn't be a
>>> problem as long as .ipynb remains a JSON key-value store, but we wanted to
>>> check with the community to make sure.
>>> Thanks,
>>> Dennis
>>> _______________________________________________
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> --
> Jonathan Taylor
> Dept. of Statistics
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