Can I double-click a tkinter Listbox option to invoke function in Python?
Question: I have a Listbox with an associated "Select" button. I want my GUI such that a
double-click on any Listbox value invokes this button's command. My attempt
(below) works when an option is selected and the user double-clicks ANYWHERE
in the window. I want it to work only when the selection itself (blue
highlighted row) is being double-clicked.

What is the best way to do this?

    
    
    from tkinter import *
    
    def func1():
        print("in func1")
    
    def func2():
        print("in func2")
    
    def selection():
        try:
            dictionary[listbox.selection_get()]()
        except:
            pass
    
    root = Tk()
    
    frame = Frame(root)
    frame.pack()
    
    dictionary = {"1":func1, "2":func2}
    
    items = StringVar(value=tuple(sorted(dictionary.keys())))
    
    listbox = Listbox(frame, listvariable=items, width=15, height=5)
    listbox.grid(column=0, row=2, rowspan=6, sticky=("n", "w", "e", "s"))
    listbox.focus()
    
    selectButton = Button(frame, text='Select', underline = 0, command=selection)
    selectButton.grid(column=2, row=4, sticky="e", padx=50, pady=50)
    
    root.bind('<Double-1>', lambda x: selectButton.invoke())
    
    root.mainloop()
    


Answer: Change `root.bind(...)` to `listbox.bind(...)`

