Variable containing object is not defined in console

Jessica Bourgin

Hi,

I sometimes use the Jupyter QtConsole integrated in OpenSesame to debug my code, and I noticed that some variables that should be accessible were indicated as "not defined" by the console (see screenshot capture below).

After a few tries, I realized that the variables that the console didn't find were always variables containing an object, like a canvas, or an object of a custom class as simple as the one below.

class MyObject():
    num = 1

myObj = MyObject()

You will find attached a minimal example to reproduce the problem.

Is this a bug, or is there a reason for this?

Thanks for your help.

Best,

Jessica

minimal_example.osexp

Jessica Bourgin

Sorry, I forgot the parentheses in the class defined in my first post :

myObj = MyObject()

The code defined in my minimal example is correct.

sebastiaan

Hi @Jessica Bourgin ,

That can happen, yes. The experiment runs in a separate Python process, which you cannot directly access through the console. To nevertheless allow for basic debugging, variables are explicitly copied from the experiment process to the console process. But that doesn't work for every type of variables.

Does that clear things up? I realize this limits the usefulness of the console for debugging.

— Sebastiaan

Jessica Bourgin

Hi @sebastiaan ,

Thanks a lot for your answer. Yes, I understand now :-)

Best,

Jessica