PyQT - Make integers and dates in QTableWidget properly sortable

[NewPyQt]

OK, here is the answer I came up with by myself:

self.tableView.setItem(i, 2, QTableWidgetItem(str(create_dataframe(res)[2][i])))
it3 = QTableWidgetItem()
it3.setData(Qt.EditRole, QVariant(create_dataframe(res)[3][i]))
self.tableView.setItem(i, 3, it3)

self.tableView.setItem(i, 2, QTableWidgetItem(str(create_dataframe(res)[2][i])))
it3 = QTableWidgetItem()
it3.setData(Qt.EditRole, QVariant(create_dataframe(res)[3][i]))
self.tableView.setItem(i, 3, it3)

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I.e. there is no need to transform datetime value: it can be properly sorted in string form. As for integer values, I have to create an instance of QTableWidgetItem(), then use .setData with QVariant on it. After this I can setItem to the table.