[IPython-dev] Twisted reactor + IPython0

Laurent Dufréchou laurent.dufrechou at gmail.com
Thu Mar 20 04:13:56 EDT 2008

Hi all,

Just to drop some more need on threading.
I've written a little piece of code to create a WX Ipython shell.
I've used for this a thread with an ipython0 instance and communicate with
the gui via polling (the first version) and now I'm starting to use
One big need I have and that cannot be resolved easily is to ba able to have
some sort of Ipython instance with GUI loop support + twisted support.
The idea:

Any WXAPP/QTApp   <-- XML RPC --> The twisted loop + Any GUI(QT/WX...) loop
+ Ipython server.

With XML RPC you can just make any action inside Ipython instance.
I want this to be able to make a WX(and QT) console able to launch any QT/Wx
windows and thus independent to the Console App.

With this you can have a really really good dev env for graphical app.
Moreover designing such a server will be raally good for people who want an
ipython console, because with this all the wx/QT/... console code will share
the same ipython object that will save lot of work.

Glenn, perhaps my idea is stupid, but do you thing we will have a lot of
performance related problem with this, do you see any issue as you've worked
a little on something like this??
Perhaps it is a too big thing for a simple Ipython console...


-----Message d'origine-----
De : ipython-dev-bounces at scipy.org [mailto:ipython-dev-bounces at scipy.org] De
la part de Ville M. Vainio
Envoyé : jeudi 20 mars 2008 07:20
À : Glenn H Tarbox, PhD
Cc : ipython-dev Mailing list
Objet : Re: [IPython-dev] Twisted reactor + IPython0

On Thu, Mar 20, 2008 at 7:41 AM, Glenn H Tarbox, PhD <glenn at tarbox.org>

>  On Thu, 2008-03-20 at 07:33 +0200, Ville M. Vainio wrote:
>  > On Thu, Mar 20, 2008 at 12:35 AM, Glenn H Tarbox, PhD
<glenn at tarbox.org> wrote:
>  >
>  > > This is where I started originally.  There's a better fix which I
>  > >  a while ago.  The below uses polling which is unnecessary.  By
>  > >  shell, you can turn the whole thing into a callback.
>  >
>  > The ASPN recipe works like the current GUI backends, so it seems to
>  > "obviously work".
>  it works, just spins cycles unnecessarily.  If you look through this
>  list you'll see the minor changes I made to Shell (posted on Feb 9).  My
>  code generates a callback when somethings needs to be serviced as
>  opposed to having a high-frequency polling loop try and determine the
>  same thing

Goodie. Frankly, I probably missed the original discussion because I
thought of it was mostly related to IPython1 (though obviously I can't
remember why I missed it) ;-)

Ville M. Vainio - vivainio.googlepages.com
blog=360.yahoo.com/villevainio - g[mail | talk]='vivainio'
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