[Interest] I feel stupid: QStandardItem::insertRows: Ignoring duplicate insertion of item

[Frank Rueter | OHUfx]

Hi,

I seem to run into this issue a lot and I don't get why:
I have a list of sub-classed QStandardItems that another processor 
generated, and I want to add them to a QStandardItemModel like this:

for item in myItemList:
     self.model.appendRow(item)

The model is empty and hasn't been used at this point. Yet I get none of 
my items but one of those errors for each item:
     QStandardItem::insertRows: Ignoring duplicate insertion of item

I know I should know this but I can't figure out why this is happening. 
Is there something special I need to do when subclassing QStandardItem?


Cheers,
frank

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