Having searched online and read the documentation, we might start by writing the following code to create our GUI:

GUI_Spaghetti.py

# Spaghetti Code ############################# 
def PRINTME(me):print(me) 
import tkinter  
x=y=z=1 
PRINTME(z)  
from tkinter import * 
scrolW=30;scrolH=6 
win=tkinter.Tk() 
if x:chVarUn=tkinter.IntVar() 
from tkinter import ttk 
WE='WE' 
import tkinter.scrolledtext 
outputFrame=tkinter.ttk.LabelFrame(win,text=' Type into the scrolled text 
                                   control: ') 
scr=tkinter.scrolledtext.ScrolledText(outputFrame,width=scrolW,height=scrolH,wrap=tkinter.WORD) 
e='E' 
scr.grid(column=1,row=1,sticky=WE) 
outputFrame.grid(column=0,row=2,sticky=e,padx=8) 
lFrame=None 
if y:chck2=tkinter.Checkbutton(lFrame,text="Enabled",variable=chVarUn) 
wE='WE' 
if y==x:PRINTME(x)  
lFrame=tkinter.ttk.LabelFrame(win,text="Spaghetti") 
chck2.grid(column=1,row=4,sticky=tkinter.W,columnspan=3)   
PRINTME(z) 
lFrame.grid(column=0,row=0,sticky=wE,padx=10,pady=10)  
chck2.select() 
try: win.mainloop() 
except:PRINTME(x) 
chck2.deselect() 
if y==x:PRINTME(x)  
# End Pasta #############################

Running the preceding code results in the following GUI:

This is not quite the GUI we intended. We wanted it to look something more like this:

While the spaghetti code created a GUI, the code is very hard to debug because there is so much confusion in the code.

The following is the code that produces the desired GUI:

GUI_NOT_Spaghetti.py

#====================== 
# imports 
#====================== 
import tkinter as tk 
from tkinter import ttk 
from tkinter import scrolledtext 

#====================== 
# Create instance 
#====================== 
win = tk.Tk()    

#====================== 
# Add a title        
#======================  
win.title("Python GUI") 

#========================= 
# Disable resizing the GUI 
#========================= 
win.resizable(0,0) 

#============================================================= 
# Adding a LabelFrame, Textbox (Entry) and Combobox   
#============================================================= 
lFrame = ttk.LabelFrame(win, text="Python GUI Programming Cookbook") 
lFrame.grid(column=0, row=0, sticky='WE', padx=10, pady=10) 

#============================================================= 
# Using a scrolled Text control     
#============================================================= 
outputFrame = ttk.LabelFrame(win, text=' Type into the scrolled text 
                             control: ') 
outputFrame.grid(column=0, row=2, sticky='E', padx=8) 
scrolW = 30 
scrolH =  6 
scr = scrolledtext.ScrolledText(outputFrame, width=scrolW, 
                                height=scrolH, wrap=tk.WORD) 
scr.grid(column=1, row=0, sticky='WE') 

#============================================================= 
# Creating a checkbutton 
#============================================================= 
chVarUn = tk.IntVar() 
check2 = tk.Checkbutton(lFrame, text="Enabled", variable=chVarUn) 
check2.deselect() 
check2.grid(column=1, row=4, sticky=tk.W, columnspan=3)  

#====================== 
# Start GUI 
#====================== 
win.mainloop()