Why do treeview widget put an extra column although I only gave it two? I also can't control the width of it

Question

1. I can\'t figure out how to control the width of the widget

2. I can\'t make it display only 2 columns

   from Tkinter import *
   from ttk import Tr         
   
   
           

Answer 1

That first column is the tree. You can turn it off by using the show attribute. The value must be a list with zero or more values. The valid values are headings to show the column headings, and tree to show the tree. The default value is ['tree', 'headings'].

Here's how to have the treeview show the column headings but not the tree:

tree = Treeview(root, height=10, columns=2, show=["headings"])

If you want to see the tree, but you want to control its width, you can do that too. The tree column can always be identified with '#0'. You can use the column method to set the width:

tree.column('#0', width=50)