Python operator Overloading

Constructors and Expressions: __init__, __sub__ common operator overloading methods

Method	Reload	Pager
__init__	constructor function	Object creation: X = Class (args)
__del__	Destructors	X Object retract
__add__	Cloud Algorithm +	If there is no _iadd_, X+y, x+=y
__or__	operator |	If there is no _ior_,x| Y, X|=y
_REPR__, __str__	Print, convert	Print (x), repr (x), str (x)
__call__	Function call	X (*args, **kwargs)
__getattr__	Point number arithmetic	x.undefined
__setattr__	Property Assignment Statements	X.any=value
__delattr__	Property Delete	Del X.any
__getattribute__	Property gets	X.any
__getitem__	Index operations	X[KEY],X[I:J]
__setitem__	Index assignment statement	X[key],x[i:j]=sequence
__delitem__	Index and Shard deletion	Del X[key],del X[i:j]
__len__	Length	Len (X), if there is no __bool__, the truth test
__bool__	Boolean test	BOOL (X)
__lt__, __gt__, __le__, __ge__, __eq__, __ne__	A specific comparison	X<y,x>y,x<=y,x>=y, X==y,x!=y Note: (lt:less than, gt:greater than, le:less equal, Ge:greater equal, Eq:equal, Ne:not Equal ）
__radd__	Right addition	Other+x
__iadd__	field (Enhanced) addition	X+=y (or else __add__)
__ITER__, __next__	Iterative environment	I=iter (X), Next ()
__contains__	Member Relationship Testing	Item in X (any iteration possible)
__index__	Integer value	Hex (x), Bin (x), Oct (x)
__ENTER__, __exit__	Environment Manager	With obj as Var:
__get__, __set__, __delete__	Descriptor Properties	X.attr, X.attr=value, Del x.attr
__new__	Create	Create an object before __init__

Python operator Overloading