I found on net this:
"Mixins are classes that further enhance the functionality of a wx.ListCtrl. Mixin classes are so called helper classes. They are located in wx.lib.mixins.listctrl module. In order to use them, the programmer has to inherit from these classes. "
Please someone explain me the way this stuffs do work, perhaps good tutorial on helper classes, especially this mixins and how to use them.
Thanks alot :D