如何将直播视频从url流到python tkinter？

import cv2
import PIL.ImageTk as ImageTk
from PIL import Image
import requests
from io import BytesIO
import tkinter as tk

root = tk.Tk()
root.title("直播视频")

canvas = tk.Canvas(root, width=640, height=480)
canvas.pack()

def show_frame():
    url = "直播视频的URL"
    response = requests.get(url)
    frame = Image.open(BytesIO(response.content))
    frame = frame.resize((640, 480), Image.ANTIALIAS)
    img = ImageTk.PhotoImage(frame)
    canvas.create_image(0, 0, anchor=tk.NW, image=img)
    canvas.img = img
    root.after(10, show_frame)

show_frame()

root.mainloop()

import cv2
import PIL.ImageTk as ImageTk
from PIL import Image
import requests
from io import BytesIO
import tkinter as tk

root = tk.Tk()
root.title("直播视频")

canvas = tk.Canvas(root, width=640, height=480)
canvas.pack()

def show_frame():
    url = "直播视频的URL"
    response = requests.get(url)
    frame = Image.open(BytesIO(response.content))
    frame = frame.resize((640, 480), Image.ANTIALIAS)
    img = ImageTk.PhotoImage(frame)
    canvas.create_image(0, 0, anchor=tk.NW, image=img)
    canvas.img = img
    root.after(10, show_frame)

show_frame()

root.mainloop()