Tkinter - quit() 在使用 if __name__ == '__main__' 时关闭：但在其他情况下则不然

Question

我的 Tkinter 代码：

from tkinter import Tk, Label, Entry, Button, END
from PIL import ImageTk, Image

class InputWindow():
    def __init__(self, *args, **kwargs):
        self.root = Tk()
        self.root.title('Image Captcha')
        self.root.configure(background='#ffe75c')
        # Initializing the Variables to be defined later
        image_label = Label(self.root)

        # Defining the Input Box and placing it in the window
        self.entry = Entry(self.root, width=10, borderwidth=5, font="Arial 15", justify="center")
        self.entry.grid(row=2, column=0)

        # Removing the contents of the input box.
        self.entry.delete(0, END)
        image_url = kwargs.get('captcha')
        im = Image.open(requests.get(image_url, stream=True, timeout=5).raw)
        image_display = ImageTk.PhotoImage(im, master=self.root)
        # Removing the previous Image (if present) and
        # displaying a new one.
        image_label.grid_forget()
        image_label = Label(self.root, image=image_display)
        image_label.grid(row=1, column=0, columnspan=2, padx=10)  

        # Defining the submit button
        submit_button = Button(self.root, text="Submit", font="Arial 10", command=lambda: self.get())
        submit_button.grid(row=3, column=0, columnspan=2, pady=10)

        self.root.mainloop()   

    def get(self):
        if self.entry.get():
            text = self.entry.get()
            self.root.quit()
            return text
        self.root.quit()
        return False

我在我的函数中这样称呼它：

solver = InputWindow(captcha = img_link)
captcha_str = solver.get()
solver.root.destroy()

所以这工作正常，因为当我运行时它会关闭：

if __name__ == '__main__': 

但是，当我从另一个函数运行它时，窗口仍然存在并且不会关闭。我希望它在向我提供输入的文本后关闭。我用 destroy() 替换了 quit() 但没有成功。

如有任何帮助，我们将不胜感激。感谢您的关注和时间。

OZooHA

Answer 1

答案是在 captcha_str 之后添加一行来销毁窗口：

solver = InputWindow(captcha = img_link)
captcha_str = solver.get()
solver.root.destroy()