CODEWITHSUNDEEP
pythonmultithreadingpython-2.7tkinterpython-multithreading
SarahJohnson
SarahJohnson

Reputation: 31

tkinter exit/quit/killing function threading out of mainloop

I have this script that execute a long running function out of/before the main class/loop in tkinter and there is a button i created to quit the program completely using root.destroy() but it close the gui and the function keep running in the console or even as a background process after i created the executable file.

How to solve this issue?

snippets of my script:

 from tkinter import *
 import threading             

def download():
    #downloading a video file
def stop(): # stop button to close the gui and should terminate the download function too
   root.destroy()

class 
...
...
...
def downloadbutton():
    threading.Thread(target=download).start()

Upvotes: 0

Views: 5354

Answers (2)

exec85
exec85

Reputation: 487

Is there a way I could implement it in one line?

I am using this so far:

b_start = Button(app,text='Start',padx=8, pady=20, command=lambda:threading.Thread(target=filters).start())

Upvotes: 0

Novel
Novel

Reputation: 13729

Make the thread a daemon to have it die when the main thread dies.

def downloadbutton():
    t = threading.Thread(target=download)
    t.daemon = True
    t.start()

For example: 

import tkinter as tk
import threading
import time

def download():
    while True:
        time.sleep(1)
        print('tick tock')

def stop(): # stop button to close the gui and should terminate the download function too
   root.destroy()

def downloadbutton():
    t = threading.Thread(target=download)
    t.daemon = True
    t.start()

root = tk.Tk()
btn = tk.Button(text = "Start", command=downloadbutton)
btn.pack()
btn = tk.Button(text = "Stop", command=stop)
btn.pack()
root.mainloop()

Upvotes: 6

Related Questions