[Python] How can I make a square Tkinter Entry widget if width only accepts integers?

I'm trying to create a square tk.Entry widget in Tkinter, but the width parameter only accepts integers which represent a number of characters instead of pixels.

Setting width=2 makes the box too narrow, while width=3 makes it too wide.

import tkinter as tk

root = tk.Tk()

entry2 = tk.Entry(root, width=2, bd=3)
entry2.pack(pady=5, anchor="w")

entry3 = tk.Entry(root, width=3, bd=3)
entry3.pack(pady=5, anchor="w")

root.mainloop()




Trying to use a decimal value causes an an error.

import tkinter as tk

root = tk.Tk()

entry_decimal = tk.Entry(root, width=2.5, bd=3)
entry_decimal.pack(pady=5, anchor="w")


root.mainloop()


_tkinter.TclError: expected integer but got "2.5"


According to TkDocs, the width for an Entry widget is based on average character width, so it's not pixel-precise and varies by font.

The size of the entry in characters. [...] For proportional fonts, the physical length of the widget will be based on the average width of a character times the value of the width option.
​

Is there any way to make a square-shaped Entry widget with equal width and height?

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