tk_example_E.py

#!/usr/bin/env python3
import tkinter as tk
from tkinter import ttk
from tkinter import scrolledtext

window = tk.Tk()
window.title("tk components")

scroll_w = 20
scroll_h = 5

# wrap=tk.WORD wraps based on words

scrText = scrolledtext.ScrolledText(window, wrap=tk.WORD, width=scroll_w, height=scroll_h)
scrText.grid(column=1, row=0, columnspan=3)

label1 = tk.Label(window, text="label 1").grid(column=0, row=0)
label2 = tk.Label(window, text="label 2").grid(column=0, row=1)
label3 = tk.Label(window, text="label 3").grid(column=0, row=2)

colors = ['blue', 'black', 'red']


def radio_button_color_changer():
    radio_select = redVar.get()
    if radio_select == 0:
        window.configure(background=colors[0])
    elif radio_select == 1:
        window.configure(background=colors[1])
    elif radio_select == 2:
        window.configure(background=colors[2])


redVar = tk.IntVar()

for col in range(3):
    cuRad = tk.Radiobutton(window, text=colors[col], variable=redVar, value=col, command=radio_button_color_changer)
    cuRad.grid(column=col, row=3, sticky=tk.W)

buttons_frame = ttk.LabelFrame(window, text="Labels in a frame")
buttons_frame.grid(column=0, row=7, padx=20, pady=40)

ttk.Label(buttons_frame, text="Label 1").grid(column=0, row=0, sticky=tk.W)
ttk.Label(buttons_frame, text="Label 2").grid(column=0, row=1, sticky=tk.W)
ttk.Label(buttons_frame, text="Label 3").grid(column=0, row=2, sticky=tk.W)

for child in buttons_frame.winfo_children():
    child.grid_configure(padx=8, pady=4)

window.mainloop()