sowe now have design in hand and are ready to turn that design into working programof courseit doesn' usually happen this way we'll be seeing examples and hints for good software design throughout the bookbut our focus is object-oriented programming solet' have look at the python syntax that allows us to create object-oriented software after completing this we will understandhow to create classes and instantiate objects in python how to add attributes and behaviors to python objects how to organize classes into packages and modules how to suggest people don' clobber our data creating python classes we don' have to write much python code to realize that python is very "cleanlanguage when we want to do somethingwe just do itwithout having to go through lot of setup the ubiquitous "hello worldin pythonas you've likely seenis only one line similarlythe simplest class in python looks like thisclass myfirstclasspass there' our first object-oriented programthe class definition starts with the class keyword this is followed by name (of our choiceidentifying the classand is terminated with colon