bpo-30466: Add brief explanation of classes to tutorial (GH-1804)

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Trey Hunner 2017-07-12 19:30:37 -07:00 committed by Mariatta
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Classes
*******
Classes provide a means of bundling data and functionality together. Creating
a new class creates a new *type* of object, allowing new *instances* of that
type to be made. Each class instance can have attributes attached to it for
maintaining its state. Class instances can also have methods (defined by its
class) for modifying its state.
Compared with other programming languages, Python's class mechanism adds classes
with a minimum of new syntax and semantics. It is a mixture of the class
mechanisms found in C++ and Modula-3. Python classes provide all the standard