Bitwise operations in a class inheriting int

Question

I inherited from int because I wanted to implement a simple interface for bitwise operations. Due to the immutability of int, I have to use integer member functions such as int.__and__, ....

class Bitset(int)
    ...
    def __setitem__(self, index, value):
        if value:
            self.__ior__(1 << int(index))
        else:
            self.__iand__(~(1 << int(index)))

In one of my member functions, I want to use the |=and functions &=, but the integer has no member functions __ior__and __iand__. So my question is: how can I solve this problem?

Edit:

I do not want to simplify binary operations, I would like to manipulate the bits of an integer. For example.

a = Bitset(0)
a[0]
>>>0
a[0] = 1
a[0]
>>>1

But I did not want to redefine all the whole operations that should work anyway. If I complete the internal integer, I have to do this. for example

a = Bitset(0)
a += 1

must work.

Answer 1

int , , __setindex__(). , -, , , , . __int__() __long__() ( , ).

Answer 2

(. http://docs.python.org/reference/expressions.html#summary), :

4 >> 1
# 2

__ior__ __iand__, __and__ __or__. , __ror__ __rand__, . . : http://www.rafekettler.com/magicmethods.html#numeric

: http://wiki.python.org/moin/BitwiseOperators