[PyQt] Use pyqtProperty on QObject instance

[Patrick Stinson]

I have a custom object property system that adds properties to QObject instances and am trying to expose those [dynamic] properties to qml.

Is it possible to add a qt property to a QObject instance, as opposed to adding it using pyqtProperty as a decorator in the class declaration?

The PyQt5 docs say that you can use pyqtProperty in the same way as the python property() function apart from the decorator, but I haven’t had much success with this:


def test_property():
    class A(QObject):
        def __init__(self):
            self._mine = 12
            self.mine = pyqtProperty(int, self.get_mine, self.set_mine)
        def get_mine(self):
            return self._mine
        def set_mine(self, x):
            self._mine = x

    a = A()
    print(a.mine)
    print(a.mine())



turin:pkdiagram patrick$ python test.py
<PyQt5.QtCore.pyqtProperty object at 0x114ea1840>
Traceback (most recent call last):
  File "test.py", line 743, in <module>
    test_property()
  File "test.py", line 740, in test_property
    print(a.mine())
TypeError: Required argument 'fget' (pos 1) not found
turin:pkdiagram patrick$ 
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