Alternatively, one can cast the address to py_object and dereference its `value`. For example:

    >>> obj = bytearray(b'spam')
    >>> sys.getrefcount(obj)
    2
    >>> obj2 = ctypes.cast(id(obj), ctypes.py_object).value
    >>> obj2 is obj
    True
    >>> sys.getrefcount(obj)
    3
    >>> del obj2
    >>> sys.getrefcount(obj)
    2