from tkinter import Tk, Listbox, MULTIPLE, END, Button def doStuff(): selected = lb.curselection() if selected: # only do stuff if user made a selection print(selected) for index in selected: print(lb.get(index)) # how you get the value of the selection from a listbox def clear(lb): lb.select_clear(0, END) # unselect all root = Tk() root.title("Aimtocode") lb = Listbox(root, selectmode=MULTIPLE) # create Listbox for n in range(5): lb.insert(END, n) # put nums 0-4 in listbox lb.pack() # put listbox on window root.mainloop()