Почему сначала распознаётся речь, а потом открывается окно?

 import tkinter as tk 
from tkinter import Label 
from PIL import Image, ImageTk 
 
import speech_recognition as sr 
 
root = tk.Tk() 
root.wm_attributes("-topmost",1) 
root.attributes('-fullscreen', True) 
root.configure(background='white') 
root.resizable(0,0) 
root.title("I am so scary") 
 
# root.overrideredirect(True) 
 
root.configure(background='white') 
 
root.wm_attributes("-transparentcolor", "white") 
 
img = ImageTk.PhotoImage(file='files/1.png') 
imgLabel = Label(root, image=img, borderwidth=0, bg='white') 
imgLabel.place(relx = 0.5, rely = 0.6, anchor = 'center') 
 
label = tk.Label(root, text="привет! какие ваши пожелания?", fg='#41004D') 
label.configure(background='white') 
label.config(font=("Courier", 25)) 
label.place(relx = 0.5, rely = 0.3, anchor = 'center') 
 
 
 
mic = sr.Microphone(device_index=1) 
 
r = sr.Recognizer() 
def listen(): 
    with mic as source: 
        print("введите комманду") 
        audio = r.listen(source) 
 
    command = r.recognize_google(audio,language="ru-RU") 
    print("ваша комманда: " + command) 
listen() 
 
root.mainloop()