[IPython-dev] ipython on google app engine

Barry Wark barrywark at gmail.com
Sun May 25 12:49:03 EDT 2008

On Sat, May 24, 2008 at 1:50 AM, Ondrej Certik <ondrej at certik.cz> wrote:
> Hi,
> I'd love to use ipython on the google app engine. Currently our shell
> looks like this:
> http://live.sympy.org/
> But I just prefer the ipython style. What I use/like on ipython is just:
> 1) the look and feel (lines starting with [1] etc.)
> 2) tab completion
> 3) ? and ??
> 4) inteligent up/down arrows history browsing
> and I think that's all (sometimes I use some other features, but very
> rarely). So when thinking about it again,
> 1) should be easy to fix, or at least come to a very close look & feel,
> 2) This will be hard, as it will require an interaction between the
> webbrowser and the server. We may learn from Sage, ipython1 or
> http://knoboo.com/

It's my understanding that the current plan is for tab completion to
be handled in the frontend, not at the engine level in ipython1.
Mapping the ipython1 model directly to this situation, the tab
completion would happen in the browser. Since this is a bit
impractical, I'd suggest Ville's solution. The nature of the AppEngine
will mitigate the risk that the server is slow to respond to the tab
completion request (a possiblity in the ipython1 model if the
controller or engine handled the completion request).

> 3) this should be easy, it will simply copy the command to the server,
> and in python we'll parse it and return some help
> 4) will have to be implemented in javascript, but I could also live
> without it quite well,
> Note, that the requirement is that it runs on the google app server.
> What do you think? How does this fit into the ipython1 model? I'd like
> to have something now, but also I'd prefer to work on one thing
> ipython1, instead of doing things on my own. Also I probably won't
> have much time either. But my motivation to run something like
> ipython+sympy on google app engine is also big. :)
> Ondrej
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