The Attribute (.) Operator
The dot (.) operator is used to access the attributes of an object. For example:
foo.x = 3 print foo.y a = foo.bar(3,4,5)
More than one dot operator can appear in a single expression, such as in foo.y.a.b. The dot operator can also be applied to the intermediate results of functions, as in a = foo.bar(3,4,5).spam.