Space in qtreewidget

[ecce]

I have a QTreeWidget with a few columns in it. All the items in the list appears a bit in from left side, see the attached file. I want them all the way out to the left. This is the code I use for adding items to the list:

class PolicyList(QTreeWidget):
 
    def addItem(self, ipv4):
        self.expandItem(parent)
        item = QTreeWidgetItem(self)
        item.setText(0, ipv4)
        item.setFlags(Qt.ItemIsSelectable | Qt.ItemIsUserCheckable | Qt.ItemIsEnabled | Qt.ItemIsDragEnabled | Qt.ItemIsEditable)
        item.setIcon(0,self.style().standardIcon(QStyle.SP_FileIcon))
        return item

class PolicyList(QTreeWidget):

    def addItem(self, ipv4):
        self.expandItem(parent)
        item = QTreeWidgetItem(self)
        item.setText(0, ipv4)
        item.setFlags(Qt.ItemIsSelectable | Qt.ItemIsUserCheckable | Qt.ItemIsEnabled | Qt.ItemIsDragEnabled | Qt.ItemIsEditable)
        item.setIcon(0,self.style().standardIcon(QStyle.SP_FileIcon))
        return item

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Screen_Shot_2015_04_19_at_14_16_02.png

[anda_skoa]

Since you set ItemIsUserCheckable, my guess is that empty space is likely where a checkmark will be placed for checked items.

Cheers,
_

[ecce]

No, that's not it. It's not any of the flags, I've tried removing them all.

How do I know if the item I add is a root item? I get the feeling the space is because of all the items in the list are children to the wrong parents or something.

EDIT: Got it! QTreeWidget.setRootIsDecorated(False)