changing order of items in tkinter listbox

Question

Is there an easier way to change the order of items in a tkinter listbox than deleting the values for specific key, then re-entering new info?

For example, I want to

Answer 1

To expand on Tim's answer, it is possible to do this for multiple items as well if you use the currentselection() function of the tkinter.listbox.

l = self.lstListBox
posList = l.curselection()

# exit if the list is empty
if not posList:
    return

for pos in posList:

    # skip if item is at the top
    if pos == 0:
        continue

    text = l.get(pos)
    l.delete(pos)
    l.insert(pos-1, text)

This would move all selected items up 1 position. It could also be easily adapted to move the items down. You would have to check if the item was at the end of the list instead of the top, and then add 1 to the index instead of subtract. You would also want to reverse the list for the loop so that the changing indexes wouldn't mess up future moves in the set.

Answer 2

Is there an easier way to change the order of items in a tkinter listbox than deleting the values for specific key, then re-entering new info?

No. Deleting and re-inserting is the only way. If you just want to move a single item up by one you can do it with only one delete and insert, though.

def move_up(self, pos):
    """ Moves the item at position pos up by one """

    if pos == 0:
        return

    text = self.fileListSorted.get(pos)
    self.fileListSorted.delete(pos)
    self.fileListSorted.insert(pos-1, text)