GUI Button hold down - tkinter

Question

I\'m trying to do a GUI in python to control my robotic car. My question is how I do a function that determine a hold down button. I want to move the car when the button is

Answer 1

@ Danny Try the following code:

def stop_motor(event): print('button released') return False

This answer run print 'test statement' one time. The while loop run one time when the button is pressed.

@ Bryan Oakley Set a flag when the button is pressed, unset the flag when the button is released. There's no need for a loop since you're already running a loop (mainloop)

from Tkinter import * 
running = False

root = Tk()
def start_motor(event):
    global running
    running = True
    print("starting motor...")

def stop_motor(event):
    global running
    print("stopping motor...")
    running = False

button = Button(root, text ="forward")
button.pack(side=LEFT)
root.bind('',start_motor)
root.bind('',stop_motor)
root.mainloop()

This answer above stays in a infinite loop when the button is pressed.

@ Joseph FarahYou might want to try the repeatinterval option. The way it works is a button will continually fire as long as the user holds it down. The repeatinterval parameter essentially lets the program know how often it should fire the button if so. Here is a link to the explanation:

http://infohost.nmt.edu/tcc/help/pubs/tkinter/web/button.html

Search in-page for "repeatinterval".

Another name for this parameter is repeatdelay.

I set the repeat interval in the parameter option for the button widget but it doesn't repeat the command.

Thanks for all the answer . Still looking to solve this problem.