How to properly close a canvas/app/window?

[Thomas]

Hi,

I am quite new to vispy but have managed to render a couple of meshes using gloo and the examples provided on the homepage.

I have run into the following problem: When I close a window/canvas, the python interpreter starts to lag/stutter. I sometimes can't even exit it properly. 

A minimal working example can be constructed by replacing line 164 of the file examples/basics/gloo/rotate_cube.py with "def render():". I basically open the python interpreter, import rotate_cube, call render() and then close the window. If I then type in a new command, it takes multiple seconds for the letters appear on screen.

Is there anything that I need to take care of when creating (and closing) windows like this?

I am using the latest version of vispy with PyQt 4.11.3 as a backend and Python 2.7.6 on OS X 10.10.2.

Thanks in advance,

Thomas

[Cyrille Rossant]

Hi,

Have you tried with IPython? In IPython you can enable the Qt GUI
event loop with "%gui qt" which should fix the problem.

Cyrille

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[Eric Larson]

Hmm... this might be caused by our "interactive mode" not quitting responsively enough when no windows are open. Feel free to open an issue on the GitHub page and we'll hopefully take a look at it soon.

Eric

[Thomas]

That worked, thanks!

@Eric I'll look into it.