Returning the index of an item clicked in a tkinter Listbox

Question

I'm trying to get tkinter to return the index of an item clicked in listbox. Here's my code.

def fileSelection(self):
    selection = listbox.curselection
    print(selection)

listbox.bind("<Button-1>", fileSelection)

Right now it prints

bound method Listbox.curselection of tkinter.Listbox object at 0x00320E30

no matter what item is clicked on. If I change the code to include a button like this:

button = Button(text=u"test", command=OnButtonClick)

def OnButtonClick():
    selection = listbox.curselection()
    print(selection)

and select the Listbox item, then click the button, it will print the index of the selected item, as expected, but that's an extra step I don't want.

Solution

def fileSelection(self):
    selection = listbox.curselection
    print(selection)

Looks like you forgot the parentheses.

def fileSelection(self):
    selection = listbox.curselection()
    print(selection)

Comments

[Volkisch]

Christ... can I delete this? slinks away

[Russell Smith]

That effbot page is waaaayyyy out of date. The GUI will fire an event when the selection changes ( <<ListobxSelect>>) Regardless, your solution doesn't answer the actual question that was asked, it just works around it.