[Python] Is it possible to redefine or create a new dunder method to built in objects like...

I’m trying to define a new type of division such that 1/0 doesn’t raise a ZeroDivisionError, instead, it returns a new object called infty(0), which is defined as follow:

class infty:

def __init__(self, sign:int):
if sign > 0:
self.sign = 1
elif sign < 0:
self.sign = -1
else:
self.sign = 0

def __repr__(self):
if self.sign > 0:
return '∞'
if self.sign < 0:
return '-∞'
return '?'


so I have made a new function:

def safediv(a:int, b:int) -> float|infty:
if b == 0:
return infty(0)
return a/b


and tried to assign it to truediv by int.__truediv__ = safediv

but it fails with the error message:

int.__truediv__ = safediv
^^^^^^^^^^^^^^^
TypeError: cannot set '__truediv__' attribute of immutable type 'int'


Is there a way to achieve the effect that 1/0 returns infty(0)?

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