Setting attribute to certain values on QWidget after it's hidden/shown causes error on future hide/shows with true_property enabled

Setting an attribute on QWidget instance that was shown or hidden to certain values (from quick testing at least types, functions, and builtin functions) causes an empty error to be printed on future show and hide calls.

...
from __feature__ import true_property

    widget.show()
    widget.a = int
    widget.show()  # prints error
RecursionError: maximum recursion depth exceeded while calling a Python object