Is there a site like this with python example?
The PySide project is highly compatible with PyQT at the code level. It's documentation has (I think) all the examples from the C++ docs translated into reasonably idiomatic Python.
http://www.pyside.org/docs/pyside/contents.html
Unfortunately they haven't translated that particular tutorial, but if you look at some of the C++ examples alongside their PyQT/PySide equivalents you'll soon learn how to implement the C++ examples in Python. It's not that hard. I only know the very basics of C++ at a theoretical level, but got used to it fairly quickly.