[IPython-dev] IPython Notebook on Webfaction

Thomas Kluyver takowl@gmail....
Wed Sep 19 04:49:27 CDT 2012


On 19 September 2012 08:49, T J <tjhnson@gmail.com> wrote:
> the last response from the OP mentions that each open notebook uses 3 random
> ports (which differ from the port that the IPython notebook server listens
> on).  Is this true?  This seems like it would be an issue for me.  Can
> someone explain, in general, what IPython notebook is doing with these other
> ports?

One of them is the main request/response channel (e.g. 'execute this
code', 'get completions for foo'), one is a publication channel,
primarily for things printed to stdout, and I think the third is to
get input for stdin (although the notebook doesn't currently implement
that).

There's a pull request open that experiments with merging the three
websocket channels into one - that might help you:
https://github.com/ipython/ipython/pull/2321

Best wishes,
Thomas


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