[Tkinter] Binding Entry box to <Button-3> created in for loop

[deanhystad]

Here is some code that makes 100 entry widgets organized in 5 columns and all of them bound so clicking Button-3 calls a function.

import tkinter as tk

def button3_clicked(team, player, question, var):
    """This is a callback for a Button-3 event"""
    # Print out the team, player and question numbers as well as the answer.
    print(team, player, question, var.get())

def make_player(window, team, player):
    """I make 20 entries for a player"""
    boxes = []
    for i in range(20):
        var = tk.IntVar()
        entry = tk.Entry(window, textvariable=var)
        var.set(i+player*100)  # Set a value to verify button event works
        entry.grid(row=i, column=player)
        entry.bind('<Button-3>', \
                   lambda event, q= i: \
                   button3_clicked(team, player, q, var))
        boxes.append(var)
    return boxes

root = tk.Tk()
team1 = [make_player(root, 0, 0),
         make_player(root, 0, 1),
         make_player(root, 0, 2),
         make_player(root, 0, 3),
         make_player(root, 0, 4)]

tk.mainloop()

If you right click inside a box it calls the button3_clicked function and prints out the value in the Entry box. I used an IntVar, but if you want these to contain strings it is easy enough to use a StringVar. Entry's are a lot easier to work with using a variable than trying to work directly with the widget.