python - 为什么 tkinter GUI 不能使用 pythonw 工作（为了隐藏命令行）？

Question

例如，它在 IDLE 中运行并作为 .py 文件运行，但是当我尝试使用 .pyw 扩展名摆脱命令行时，GUI 永远不会打开。我是 tkinter 的新手，所以我不知道一个简单的修复方法，这是我的代码（对不起，它有点草率，只是作为测试）：

from pytube import YouTube
import tkinter as tk
import time
from os.path import expanduser

class YTdownloader(tk.Frame):
    def __init__(self, main=None):
        super().__init__(main)
        self.main = main
        self.pack()
        self.create()

    def create(self):
        self.text = tk.Label(self, text='Youtube URL').pack(side='top')
        url = ''
        self.enter = tk.Entry(self, textvariable=url, width=50, justify='center')
        self.enter.pack(side='top')
        self.done = tk.Button(self, text='Enter', command=self.downloader)
        self.done.pack(side='top')

    def downloader(self):
        try:
            vid = YouTube(self.enter.get())
            dv = vid.streams.first()
            dv.download(expanduser("~") + '\downloads')
            self.enter.delete(0, len(self.enter.get()))
            self.enter['fg'] = 'green'
            self.enter.insert(0, 'Success!')
            self.enter['state'] = 'readonly'
            screen.after(2000, self.normalize)
        except Exception as e:
            self.enter.delete(0, len(self.enter.get()))
            self.enter['fg'] = 'red'
            self.enter.insert(0, 'Video not found!')
            self.enter['state'] = 'readonly'
            screen.after(2000, self.normalize)

    def normalize(self):
        self.enter.config(state='normal', fg='black')
        self.enter.delete(0, len(self.enter.get()))



screen = tk.Tk()
screen.geometry("325x275")
screen.resizable(width=False, height=False)
screen.configure(bg='white')
img = tk.PhotoImage(file='rpb.png')
tk.Label(screen, image=img, bd=0).pack(side='top')
screen.title("Youtube MP4 Downloader")
inputS = tk.Frame(height=100, bd=1, relief='sunken')
inputS.pack(fill='x', padx=5, pady=5, side='bottom')
yt = YTdownloader(main=inputS)
yt.mainloop()

标签： pythontkinterpythonw