[IPython-User] Another monster landed: refactored JavaScript, new tooltips and interactive widgets in the notebook

Mark Starnes mark.starnes@fttech.co...
Fri Jun 1 03:36:15 CDT 2012

This is my first post.  I've been using IPython
for years now and always appreciated it but the
notebook and the work going into it has forced me
into saying thanks.

Thank you for all this work! The way I work has
completely changed (for the better) due to you
and your team's efforts.

Best regards,

Mark Starnes.

On Thu, May 31, 2012 at 05:30:05PM -0700, Fernando Perez wrote:
> Hi folks,
> After the merge of the previous big two branches (the merging of the
> interactive and parallel kernels into one object and the magics
> refactoring/cell support), the third monster we had in flight has now
> landed:
> https://github.com/ipython/ipython/pull/1711/
> For those of you not following the github hooks obsessively, here's
> the high-level view of the goodies:
> - New graphical tooltip with keyboard control: successive presses of
> the TAB key will expand it, pin it for 10 s (a clock icon is shown),
> and send its content to the bottom help pager (which is now
> resizable).
> - Completer has been refactored into a new class and now can analyze
> the current cell to support completions on objects that don't exist in
> the kernel yet (because the cell hasn't been executed).
> - All the client-side JavaScript has been decoupled to ease reuse of
> parts of the machinery without having to build a full-blown notebook.
> This will make it much easier to communicate with an IPython kernel
> from existing web pages and to integrate single cells into other
> sites, without loading the full notebook document-like UI.
> - This refactoring also enables the possibility of writing dynamic
> javascript widgets that are returned from Python code and that present
> an interactive view to the user, with callbacks in Javascript
> executing calls to the Kernel.  This will enable many interactive
> elements to be added by users in notebooks.
> An example of this capability has been provided as a proof of concept
> in `docs/examples/widgets` that lets you directly communicate with one
> or more parallel engines, acting as a mini-console for parallel
> debugging and introspection.
> Kudos to Brian and Matthias for the excellent work they put into this,
> it was over 84 commits and involved the merging of several
> intermediate pull requests.  But the goodies shipped therein should be
> *very*  useful.
> We've seen recently attempts at interactive plots with d3/flot and
> other similar tools; now the machinery is ready to do that cleanly, so
> by all means have fun!
> Cheers,
> f
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Dr. Mark Starnes
Principal Physicist
FT Technologies
Church Lane
TW11 8PA

web:  www.fttech.co.uk
DDI:  0208 614 2730

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