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listbox dilemma

nevlenevle Posts: 12Member
Hi guys,I've a problem with selecting an item from a listbox,could anyone tell me why the following does not work?
from Tkinter import *
root=Tk()
frame=Frame(root)
frame.pack()
listbox=Listbox(frame)
list=["fred","joe","green"]
for item in list:
listbox.insert(END,item)
listbox.pack(frame)
list=listbox.curselection()
def printitem(list):
print item
listbox.bind("

Comments

  • infidelinfidel Posts: 2,900Member
    : Hi guys,I've a problem with selecting an item from a listbox,could anyone tell me why the following does not work?
    : from Tkinter import *
    : root=Tk()
    : frame=Frame(root)
    : frame.pack()
    : listbox=Listbox(frame)
    : list=["fred","joe","green"]
    : for item in list:
    : listbox.insert(END,item)
    : listbox.pack(frame)
    : list=listbox.curselection()
    : def printitem(list):
    : print item
    : listbox.bind("
  • nevlenevle Posts: 12Member
    : I tinkered with this a little to see what I could figure out without searching the docs, and it appears that functions bound to an event are sent one argument, the event itself. As you've defined "printitem" here, the "list" argument is actually holding an event object. Not only that, but the body of the function refers to "item" which is never set anywhere. Here's what I did:
    :
    : [code]
    : >>> from Tkinter import *
    : >>> root = Tk()
    : >>> frame = Frame(root)
    : >>> frame.pack()
    : >>> listbox = Listbox(frame)
    : >>> listbox.insert(END, "FRED")
    : >>> listbox.insert(END, "JOE")
    : >>> listbox.insert(END, "GREEN")
    : >>> listbox.pack(frame)
    : >>> def printitem(event):
    : ... print listbox.get(listbox.curselection())
    : ...
    : >>> listbox.bind("
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