python integer typing.md

• Is it possible to get IntA.__new__ to return an object of type IntA without calling __new__ on the parent class?
• Is this situation unique to integer or builtin types?

>>> class IntA(int):
...  def __new__(cls, i=0):
...   return i
...
>>> class IntB(int):
...  def __new__(cls, i=0):
...   return int.__new__(cls, i)
...
>>> type(IntA())
<class 'int'>
>>> type(IntB())
<class '__main__.IntB'>
>>>