[IPython-dev] New IPEP for a multi-directory notebook in IPython

Brian Granger ellisonbg@gmail....
Thu Apr 11 23:40:22 CDT 2013

On Thu, Apr 11, 2013 at 9:14 PM, MinRK <benjaminrk@gmail.com> wrote:
> We do need to figure this one out.  There are still some questions to work
> out:
> What does `foo/bar` resolve to? Is it relative to the initial notebook
> server directory, or is it absolute?

I was thinking it is relative to the initial notebook server dir, so
users can limit the notebook servers access to the file system.  We
don't want "/" to actually mean "/".

> We already have redirects for notebook name -> notebook id URLs, perhaps
> rather than having 'true' paths in the URLs, we have project-ids, just like
> we have notebook-ids, and a redirect handler for loading a project,

Yes, we could do the redirects, but I have a feeling that the redirect
stuff is simply going to take us closer and closer to actually getting
rid of the notebook_id/project_id approach.

> i.e:
>     /project/path/to/notebook-dir redirects to /project-id/
> and /project/path/to/notebook-dir/notebook.ipynb redirects to
> /project-id/notebook-id

> The reason we have notebook-id URLs is that handling the url rewrites /
> redirects on notebook renames might be tricky.  It could be that redirects
> are a sensible  compromise.

I know how to do the dynamic URL rewriting.  This is what GitHub uses
now that it allows you to rename files in edit mode.

The big problem is if a rename happens when someone else has the same
notebook open.  Then, the other person doesn't know the rename
happened and when they save, it will write the notebook with the old
name.  But maybe this is OK - our live notebook sharing is actually
broken already - this example just shows that we need to fix it for
real.  But it is risky as a single user can run into this if they open
the notebook page in two tabs or browsers.

But I also have some vague recollections that there were some problems
with Untitled notebooks as well.



> On Thu, Apr 11, 2013 at 6:14 PM, Paul Ivanov <pi@berkeley.edu> wrote:
>> Zachary Sailer, on 2013-04-11 17:34,  wrote:
>> > Hi everyone,
>> >
>> > Take a look at the new IPEP added to the IPython wiki page,
>> > IPEP 16: Notebook multi directory dashboard and URL mapping.
>> >
>> >
>> > https://github.com/ipython/ipython/wiki/IPEP-16%3A-Notebook-multi-directory-dashboard-and-URL-mapping
>> Looks pretty good, Zach - I adjusted some wording to emphasize
>> just how bad the problem is (you have to restart the server, or
>> start a new one, not just a new dashboard).
>> I'm a bit confused by the wording of 'notebooks' and 'app' -
>> where you says something about the possibility of having
>> a folder named 'notebooks' -- what if the user has a folder named
>> 'app'?
>> best,
>> --
>> Paul Ivanov
>> http://pirsquared.org | GPG/PGP key id: 0x0F3E28F7
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Brian E. Granger
Cal Poly State University, San Luis Obispo
bgranger@calpoly.edu and ellisonbg@gmail.com

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