hello everyone, I am a new member of this forum I found really good topics and good community that helps with many scientific fields. So I have this long text-based user interface for banking system written in python functions , but needs to be written using object oriented programming. I had build many possible structures without reading the implementations of the instructor, but as I read them and try to apply them everything become very complicated. How can write/re-write the following code(ready) using the objected oriented Python? : http://www.pastebin.ca/3751103 [Broken] Where did i make a mistake? Here i tried the whole last weak something like this: http://pastebin.ca/3751105 [Broken] finally, here are the implementations :http://pastebin.ca/3751108 THANKS all and happy new year.