in in this regard--comparing instance types compares the instancesclasses automaticallyc:\codec:\python \python class (object)pass class (object)pass cd () (type( =type(dfalse new-stylesame as all in type( )type( ( __class__d __class__ (of courseas 've pointed out numerous times in this booktype checking is usually the wrong thing to do in python programs (we code to object interfacesnot object types)and the more general isinstance built-in is more likely what you'll want to use in the rare cases where instance class types must be queried howeverknowledge of python' type model can help clarify the class model in general all classes derive from "objectanother ramification of the type change in the new-style class model is that because all classes derive (inheritfrom the class object either implicitly or explicitlyand because all types are now classesevery object derives from the object built-in classwhether directly or through superclass consider the following interaction in python xclass cpass for new-style classes (type( )type(ctype is class instance was created from (as beforethe type of class instance is the class it was made fromand the type of class is the type class because classes and types have merged it is also truethoughthat the instance and class are both derived from the built-in object class and typean implicit or explicit superclass of every classisinstance(xobjecttrue isinstance(cobjecttrue classes always inherit from object the preceding returns the same results for both new-style and classic classes in todaythough type results differ more importantlyas we'll see aheadobject is not added to or present in classic class' __bases__ tupleand so is not true superclass new-style class changes