def setData(self, index, value, role):
if role == Qt.CheckStateRole and index.column() == 0:
self.layoutAboutToBeChanged.emit()
for i, v in self.checks.items():
if are_parent_and_child(index, i):
self.checks.pop(i)
self.checks[index] = value
#self.childCount(index)
self.layoutChanged.emit()
return True
return QFileSystemModel.setData(self, index, value, role)
