[IPython-User] ipython prompt slows significantly after importing from mayavi

[Fernando Perez]

On Fri, Feb 17, 2012 at 8:51 AM, Jonathan Stickel <jjstickel@gmail.com> wrote:
>
> Doing this initializes the GUI loop correctly.  I don't see a way to
> start the qtconsole with the GUI loop but without pylab, though.

Yup, it's a bug that we're not passing the --gui flag correctly to the kernel:

https://github.com/ipython/ipython/issues/1426

But you can start the console normally and then type in the qtconsole itself:

%gui qt

which will initialize the Qt event loop support for you, without loading pylab.

Cheers,

f