The tutorials I've found on WxPython all use examples from Linux, but there seem to be differences in some details.
For example, in Windows a Panel behind the widgets is mandatory to show the background properly. Additionally, some examples that look fine in the tutorials don't work in my computer.
So, do you know what important differences are there, or maybe a good tutorial that is focused on Windows?
EDIT:  I just remembered this: Does anybody know why when subclassing wx.App an OnInit() method is required, rather than the more logical __init__()?
EDIT:  I just remembered this: Does anybody know why when subclassing wx.App an OnInit() method is required, rather than the more logical __init__()?

I use OnInit() for symmetry: there's also an OnExit() method.
Edit: I may be wrong, but I don't think using OnInit() is required.
WxPython differences between Windows and Linux