Tkinter图片幻灯片程序实现启动弹窗选择图片文件夹路径

我使用Python3搭配Tkinter开发了一款图片幻灯片程序，核心播放逻辑运行正常，但目前仅支持在代码内部硬编码指定图片文件夹路径。由于程序面向的分享用户不具备修改代码的能力，需要新增以下功能：

• 程序启动时弹出Tkinter窗口，提示用户指定本地图片文件夹路径
• 支持用户将图片文件夹路径复制粘贴到窗口内的文本输入框中

初始版本代码 #

初始编写的幻灯片代码如下：

import tkinter as Tk
from PIL import Image, ImageTk
import random
import glob

class GUI:
    
    def __init__(self, mainwin):
        self.mainwin = mainwin
        self.mainwin.title("Our Photos")
        self.mainwin.configure(bg="yellow") 
        self.counter = 0
        
        self.frame = Tk.Frame(mainwin)
        self.frame.place(relheight=0.85, relwidth=0.9, relx=0.05, rely=0.05)

        self.img = Tk.Label(self.frame)
        self.img.pack()

        self.pic_list = glob.glob("/home/maheswar/Pictures/*")
        self.colours = ['snow', 'ghost white', 'white smoke', 'gainsboro', 'floral white', 'old lace',
            'linen', 'antique white', 'papaya whip', 'blanched almond']
            

        self.colour()
        self.pic()
        
    def colour(self):
        selected = random.choice(self.colours)
        self.mainwin.configure(bg=selected)
        root.after(4000, self.colour)

    def pic(self):

        filename = self.pic_list[self.counter]
        image = Image.open(filename)
        
        real_aspect = image.size[0]/image.size[1]
        width = int(real_aspect * 800)  
        
        image = image.resize((width, 800))
        
        self.photo = ImageTk.PhotoImage(image)
        self.img.config(image=self.photo)
        

        self.counter += 1
        
        if self.counter >= len(self.pic_list):
            self.counter = 0

        root.after(2000, self.pic) 

root = Tk.Tk()
myprog = GUI(root)
root.geometry("1000x1000")
root.mainloop()

补充：可直接运行的测试代码 #

以下为提供给有需要的用户测试使用的完整可运行代码：

import tkinter as Tk
from PIL import Image, ImageTk
import random
import glob
from tkinter import filedialog

    
class GUI:

    def __init__(self, mainwin):


        self.mainwin = mainwin
        self.mainwin.title("Our Photos")
        self.mainwin.configure(bg="yellow") 
        self.counter = 0
        
        self.frame = Tk.Frame(mainwin)
        self.frame.place(relheight=0.85, relwidth=0.9, relx=0.05, rely=0.05)

        self.img = Tk.Label(self.frame)
        self.img.pack()

        #self.pic_list = glob.glob("/home/maheswar/Pictures/*")
        directory = filedialog.askdirectory(parent=mainwin, title='Path asker',
                                      initialdir='/home')
        self.pic_list = glob.glob(f"{directory}/*")
        self.colours = ['snow', 'ghost white', 'white smoke', 'gainsboro', 'floral white', 'old lace',
            'linen', 'antique white', 'papaya whip', 'blanched almond', 'bisque', 'peach puff',
            'navajo white', 'lemon chiffon']

        self.colour()
        self.pic()
        
    def colour(self):
        selected = random.choice(self.colours)
        self.mainwin.configure(bg=selected)
        root.after(4000, self.colour)

    def pic(self):

        filename = self.pic_list[self.counter]
        image = Image.open(filename)
        
        real_aspect = image.size[0]/image.size[1]
        width = int(real_aspect * 800)  
        
        image = image.resize((width, 800))
        
        self.photo = ImageTk.PhotoImage(image)
        self.img.config(image=self.photo)
        

        self.counter += 1
        
        if self.counter >= len(self.pic_list):
            self.counter = 0

        root.after(2000, self.pic) 

root = Tk.Tk()
myprog = GUI(root)
root.geometry("1000x1000")
root.mainloop()

内容的提问来源于stack exchange，提问作者mahiatlinux