I am trying to remove an item from a listbox that is connected to a function from my checkbutton.

ShrimpTempVar=DoubleVar() ShrimpTempCheck=Checkbutton(menu,variable = ShrimpTempVar, onvalue=5.99, offvalue=0,command=ShrimpTempuraOrder) def ShrimpTempuraOrder(): if ShrimpTempVar.get()==5.99: qty=int(QTY2Var.get()) finalprice=ShrimpTempVar.get()*qty listbox.insert(END, "Shrimp Tempura") listboxprice.insert( END, finalprice) elif ShrimpTempVar.get()==0: listbox.delete(0,END) listboxprice.delete(0,END) 

I would like the item to be removed when I unselect it. In another post, it was suggested to do something like this:

listBox.Items.Delete(listbox.Items.IndexOf('Calamari')); 

but it says that Listbox has no attribute in Items

In addition, I do not know the index number, since it changes due to the order in which I select the different checkbuttons.

Thanks for any help!

1 Answer

Question: Remove Item from Listbox Python, if I do not know the index number

Documentations

• Python Documentation - Common Sequence Operations

  s.index(x[, i[, j]]) index of the first occurrence of x in s (at or after index i and before index j) 

  Note: (8) index raises ValueError when x is not found in s. Not all implementations support passing the additional arguments i and j. These arguments allow efficient searching of subsections of the sequence. Passing the extra arguments is roughly equivalent to using s[i:j].index(x), only without copying any data and with the returned index being relative to the start of the sequence rather than the start of the slice.

• The Tkinter Listbox Widget - get(first, last=None)

  This function returns the string corresponding to the given index (or the strings in the given index range). Use get(0, END) to get a list of all items in the list.

1. Get the index of a Listbox Item using it's label string

   label = "Shrimp Tempura" idx = listbox.get(0, tk.END).index(label) 

2. Delete the Listbox Item at this index

   listbox.delete(idx) 

Tested with Python: 3.5 - TkVersion: 8.6