Finding Functions Defined in a with: Block

Question

Here\'s some code from Richard Jones\' Blog:

with gui.vertical:
    text = gui.label(\'hello!\')
    items = gui.selection([\'one\', \'two\', \'three\'])
    wit         


        

Answer 1

To answer your question, yes, it's frame introspection.

But the syntax I would create to do the same thing is

with gui.vertical:
    text = gui.label('hello!')
    items = gui.selection(['one', 'two', 'three'])
    @gui.button('click me!')
    class button:
        def on_click():
            text.value = items.value
            text.foreground = red

Here I would implement gui.button as a decorator that returns button instance given some parameters and events (though it appears to me now that button = gui.button('click me!', mybutton_onclick is fine as well).

I would also leave gui.vertical as it is since it can be implemented without introspection. I'm not sure about its implementation, but it may involve setting gui.direction = gui.VERTICAL so that gui.label() and others use it in computing their coordinates.

Now when I look at this, I think I'd try the syntax:

    with gui.vertical:
        text = gui.label('hello!')
        items = gui.selection(['one', 'two', 'three'])

        @gui.button('click me!')
        def button():
            text.value = items.value
            foreground = red

(the idea being that similarly to how label is made out of text, a button is made out of text and function)