uimodel.py 文件源码

def __setattr__(self, key, value):
        if key not in ("changed", "__editing", "__changed"):
            if hasattr(self, key):
                old_value = getattr(self, key)
                if hasattr(old_value, "changed"):
                    old_value.changed.disconnect(self.change)

            if hasattr(value, "changed"):
                value.changed.connect(self.change)

        QtCore.QObject.__setattr__(self, key, value)