[PyQt] Emit parameter of QStandardItemModel

[Tong Zhang]

Hello,

As the doc of 'itemChanged' signal of QStandardItemModel class (
http://doc.qt.io/qt-5/qstandarditemmodel.html#itemChanged) states: the
parameter to be emitted is QStandardItem *item, which is the point to the
item, and in the Python program, we usually can write the following slot to
connect to:
def on_item_changed(self, item):
    pass

While not put decorator @pyqtSlot() atop, since @pyqtSlot(QStandardItem) is
not right, @pyqtSlot('QStandardItem*') works. And here is my question: If I
wanna trigger this signal emitting in a function, how can I pass the
parameter to itemChanged?

Thanks,
Tong
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