Python-all special methods, magic methods, hooks

C.__init__ (self[, arg1, ...]) constructor (with some optional parameters)
C.__new__ (self[, arg1, ...]) the constructor (with some optional parameters) is typically used in subclasses that set the invariant data type.
C.__del__ (self) destructor
c.__str__ (self) printable character output, built-in STR (), and print statements
C.__repr__ (self) runtime string output built-in repr () and ' operator
c.__unicode__ (self) Unicode string output; built-in Unicode ()
C.__call__ (self, *args) represents a callable instance
C.__nonzero__ (self) defines the false value for object built-in bool () (starting with version 2.2)
C.__len__ (self) "Length" (Available for Class) built in Len ()


C.__cmp__ (self, obj) object comparison; built-in CMP ()
C.__lt__ (self, obj) less than/less than or equal to the corresponding < and <= operators
C.__gt__ (self, obj) greater than/greater than or equal to the corresponding > and >= operators
C.__eq__ (self, obj) equals/does not equal corresponding ==,!= and <> operator


C.__getattr__ (self, attr) Gets the property built-in GetAttr () called only when the property is not found
C.__setattr__ (self, attr, Val) setting properties
C.__delattr__ (self, attr) Delete property
C.__getattribute__ (self, attr) a gets the property; built-in getattr () is always called
C.__get__ (self, attr) A (descriptor) Get property
C.__set__ (self, attr, Val) A (Descriptor) setting property
C.__delete__ (self, attr) A (descriptor) Delete property


C.__*add__ (self, obj) plus; + operator
C.__*sub__ (self, obj) minus;-operator
C.__*mul__ (self, obj) by; * operator
C.__*div__ (self, obj) except;/operator
C.__*truediv__ (self, obj) e True except;/operator
C.__*floordiv__ (self, obj) e floor except;//Operator
C.__*mod__ (self, obj) modulo/take redundancy;% operator
C.__*divmod__ (self, obj) except and modulo; built-in Divmod ()
C.__*pow__ (self, obj[, mod]), built-in POW (); * * operator
C.__*lshift__ (self, obj) left shift;<< operator


C.__*rshift__ (self, obj) Move right;>> operator
C.__*and__ (self, obj) bitwise AND;& operators
C.__*or__ (self, obj) bitwise OR; | operator
C.__*xor__ (self, obj) bitwise and OR; ^ operator


C.__neg__ (self) One dollar negative
C.__pos__ (self) is a dollar
C.__abs__ (self) absolute value; built-in ABS ()
C.__INVERT__ (self) bitwise negation; ~ operator


c.__complex__ (self, COM) to complex (plural); built-in complex ()
C.__int__ (self) to int; built-in int ()
C.__long__ (self) to long; built-in long ()
C.__float__ (self) to float; built-in float ()


C.__oct__ (self) octal representation; built-in Oct ()
c.__hex__ (self) hexadecimal representation; built-in Hex ()


C.__COERCE__ (self, num) is compressed into the same numeric type; built-in coerce ()
C.__index__ (self) g when necessary, the compression optional numeric type is integer (for example: for slicing



The number of items in the c.__len__ (self) sequence
C.__GETITEM__ (self, Ind) gets a single sequence element
C.__setitem__ (self, Ind,val) sets a single sequence element
C.__DELITEM__ (self, IND) delete a single sequence element


C.__getslice__ (self, ind1,ind2) get sequence Fragment
C.__setslice__ (self, i1, i2,val) set sequence fragment
C.__delslice__ (self, ind1,ind2) Delete sequence fragment
C.__contains__ (self, val) f test sequence member; built in keyword
c.__*add__ (self,obj) concatenation; + operator
c.__*mul__ (self,obj) repetition; * operator
C.__ITER__ (self) e creates an iterative class; built-in ITER ()


The number of items in the c.__len__ (self) mapping
C.__hash__ (self) hash (hash) function value
c.__getitem__ (Self,key) Gets the value of the given key (key)
C.__SETITEM__ (self,key,val) Sets the value of the given key (key)
c.__delitem__ (Self,key) Delete the value of the given key (key)
C.__MISSING__ (Self,key) Given a key if it does not exist in the dictionary, provide a default value

Python-all special methods, magic methods, hooks