Common operator overloading methods : Introduction « Class

Common operator overloading methods : Introduction « Class « Python Tutorial

1.	Introduction
2.	Data Type
3.	Statement
4.	Operator
5.	String
6.	Tuple
7.	List
8.	Dictionary
9.	Collections
10.	Function
11.	Class
12.	File
13.	Buildin Function
14.	Buildin Module
15.	Database
16.	Regular Expressions
17.	Thread
18.	Tkinker
19.	wxPython
20.	XML
21.	Network
22.	CGI Web
23.	Windows

Python Tutorial » Class » Introduction

Method              Overloads                   Called for



__init__            Constructor                 Object creation: X = Class( )

__del__             Destructor                  Object reclamation

__add__             Operator +                  X + Y, X += Y

__or__              Operator | (bitwise OR)     X | Y, X |= Y

__repr__,__str__    Printing, conversions       print X, repr(X), str(X)

__call__            Function calls              X( )

__getattr__         Qualification               X.undefined

__setattr__         Attribute assignment        X.any = value

__getitem__         Indexing                    X[key], for loops and other iterations if no _ _iter_ _

__setitem__         Index assignment            X[key] = value

__len__             Length                      len(X), truth tests

__cmp__             Comparison                  X == Y, X < Y

__lt__              Specific comparison         X < Y (or else __cmp__)

__eq__              Specific comparison         X == Y (or else __cmp__)

__radd__            Right-side operator +       Noninstance + X

__iadd__            In-place addition           X += Y (or else __add__)

__iter__            Iteration contexts          for loops, in tests, list comprehensions, map, others

11.1.Introduction
	11.1.1.	Common operator overloading methods
	11.1.2.	Double Underscore __
	11.1.3.	Special Class Attributes
	11.1.4.	__dict__ is a dictionary representing its attributes:
	11.1.5.	Special Instance Attributes
	11.1.6.	Built-in Type Attributes
	11.1.7.	Metaclass Example
	11.1.8.	Related Modules and Documentation

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