increment int object

Question

Is there a way in python to increment int object in place, int doesn't seem to implement __iadd__ so += 1 actually returns a new object

>>> n=1
>>> id(n)
9788024
>>> n+=1
>>> id(n)
9788012

What I want is n to remain pointing to same object.

Purpose: I have class derived from int and I want to implement C type '++n' operator for that class

Conclusion: ok as int is immutable there is no way, looks like i will have to write my own class something like this

class Int(object):
    def __init__(self, value):
        self._decr = False
        self.value = value

    def __neg__(self):
        if self._decr:
            self.value -= 1
        self._decr = not self._decr
        return self

    def __str__(self):
        return str(self.value)

    def __cmp__(self, n):
        return cmp(self.value, n)

    def __nonzero__(self):
        return self.value

n = Int(10)
while --n:
    print n

Answer 1

ints are immutable, so you'll have to build your own class with all the int's methods if you want a "mutable int"