Question

I’m trying to do something with a wx element from outside the class:

def doStuff(uselessVariableIsUseless):
    myListbox.Set(myList)

class myWindow(wx.Frame):
    def __init__(self, parent, id):
        myListbox = wx.ListBox(parent = self, pos = (320, 30), size = (300, 500))

I’ve also tried globalizing myListbox inside def __init__(), and using myWindow.myListbox, etc, but I still get NameError: global name 'myListbox' is not defined. What’s the right way to do this?

Answer 1

You need to assign to self.myListbox to make it a property of the instance. You can then pass the instance to the doStuff method and access it via <object>.myListbox:

def doStuff(win):
    win.myListbox.Set(myList)

class myWindow(wx.Frame):
    def __init__(self, parent, id):
        self.myListbox = wx.ListBox(parent = self, pos = (320, 30), size = (300, 500))

my_win = myWindow(0, 0)
doStuff(my_win)