How to make tkinter's `expand` give equal gaps between widgets?

Question

If you .pack(side=LEFT, expand=True) 3 widgets, you get this:

Image's source ; same is true with .grid(...) .

Notice that there are 4 vertical gaps: left, two in the middle, right. However, the gaps on left and right are half of those in the middle.

My question is: how to make expand work more evenly, so that all of the four vertical gaps are equal?

This is .pack 's man page in case it helps.

Answer 1

It can be done using .grid() . You need to put those labels in column 1,3,5 and set weight=1, uniform=1 on column 0,2,4,6 using .columnconfigure() .

import tkinter as tk

root = tk.Tk()
root.geometry("400x200")

frm = tk.Frame(master=root, bg="yellow")
# set weight=1 and uniform=1 on column 0,2,4,6
frm.columnconfigure(index=(0,2,4,6), weight=1, uniform=1)

# put labels in column 1, 3, 5
for i in range(1, 6, 2):
    tk.Label(master=frm, text=i, bg="red", padx=40, pady=10).grid(row=0, column=i)

frm.pack(fill="both", expand=True)

root.mainloop()

Result: