Попытка изменить размер кнопки в TKinter возвращает ошибку

Я думаю, что в ttk настроить высоту и ширину напрямую невозможно. (Но в tkinter.Button это возможно). Итак, чтобы настроить новую высоту в ttk, нам нужно изменить размер шрифта и отступы. Это нужно сделать, используя метод ttk.Style.

import tkinter as tk
from tkinter import ttk
import random    

# An empty dict is declared as I want to avoid some global variables
dct  = {}

def moved(e):
    
    # As e.x and e.y are optional global variables, I've declared them as values of dct
    dct['myx'] = e.x
    dct['myy'] = e.y
    
    # Remove the originally placed position
    dct['mylbl'].place_forget()
    
    # Place in new position
    dct['mylbl'].place(x= dct['myx'] - 20, y= dct['myy'] - 20)

def randomsize():

    # As the button's height changes with font size and padding, we get random values for font_size and padding
    x_pad = random.randrange(5, 40)
    y_pad = x_pad * 2
    fnt_size = random.randrange(8, 25)
    
    # If previous font_size & new font_size are same, create another font_size
    fnt_size = random.randrange(8, 25) if fnt_size == fnt_size else fnt_size
    
    # Hide the previousely placed position
    dct['mylbl'].place_forget()
    
    # Configure new style to the button with new font size and padding
    dct['stl'].configure('TButton', font = ('Helvetica', fnt_size), padding = (x_pad, y_pad))
    
    # Apply the new style
    dct['mylbl'] = ttk.Button(window, text = "Hello", command=randomsize, style = 'TButton')
    
    # I haven't changed the position. But If you want to place the button to the moved position, change x = dct['myx'] and y = dct['myy']
    dct['mylbl'].place(x=10, y=10)

window = tk.Tk()

# Add geometry
window.geometry('400x300')

# To avoid using global variable, Style is made as a value of the dict
dct['stl'] = ttk.Style()
dct['stl'].configure('TLabel', font=('Helvetica', 12), padding=5)   


# To avoid using global variable, Button is made as a value of the dict
dct['mylbl'] = ttk.Button(window, text = "Hello", command=randomsize, style = 'TButton')
dct['mylbl'].place(x=10, y=10)

window.bind("<Motion>", moved)

window.mainloop()