gui/controls/listview.py
def clear_all(self):
        "Remove all items and column headings"
        self.clear()
        for ch in reversed(self.columns):
            del self[ch.name]
def clear_all(self):
        "Remove all items and column headings"
        self.clear()
        for ch in reversed(self.columns):
            del self[ch.name]
Remove all items and column headings