While Loop Locks Application

by

now that I understand what you want better (a stopwatch) I would recommend the root.after command

from Tkinter import *
import tkMessageBox
import threading
import time
root = Tk()
root.geometry("450x250+300+300")
root.title("Raspberry PI Test")
print dir(root)
count = 0
def start_counter():
    global count
    count = 500
    root.after(1,update_counter)
def update_counter():
    global count
    count -= 1
    if count < 0:
        count_complete()
    else:
        root.after(1,update_counter)

def count_complete():
    print "DONE COUNTING!! ... I am now back in the main thread"
def mymessage():
    tkMessageBox.showinfo(title="Alert", message="Hello World!")

buttonLoop = Button(root, text="Start Loop", command=myloop)
buttonLoop.place(x=5, y=15)

buttonMessage = Button(root, text="Start Loop", command=mymessage)
buttonMessage.place(x=85, y=15)


root.mainloop()

(original answer below)

use a thread 

from Tkinter import *
import tkMessageBox
import threading
import time
root = Tk()
root.geometry("450x250+300+300")
root.title("Raspberry PI Test")
print dir(root)
def myloop():
    def run():
        count = 0
        while (count < 500) and root.wm_state():
           print 'The count is:', count
           count = count + 1
           time.sleep(1)

        root.after(1,count_complete)
    thread = threading.Thread(target=run)
    thread.start()
def count_complete():
    print "DONE COUNTING!! ... I am now back in the main thread"
def mymessage():
    tkMessageBox.showinfo(title="Alert", message="Hello World!")

buttonLoop = Button(root, text="Start Loop", command=myloop)
buttonLoop.place(x=5, y=15)

buttonMessage = Button(root, text="Start Loop", command=mymessage)
buttonMessage.place(x=85, y=15)


root.mainloop()

note that when you show the info box that will block at the windows api level so the thread counting will wait till that closes … to get around that you can just replace threading with multiprocessing I think

More Related Contents:

  1. How make a complete gui softwaree in a single windows in tkinter
  2. Tkinter assign button command in a for loop with lambda [duplicate]
  3. Adding a scrollbar to a group of widgets in Tkinter
  4. tkinter creating buttons in for loop passing command arguments
  5. How can I schedule updates (f/e, to update a clock) in tkinter?
  6. How to bind self events in Tkinter Text widget after it will binded by Text widget?
  7. How do I handle the window close event in Tkinter?
  8. How to get the input from the Tkinter Text Widget?
  9. Moving balls in Tkinter Canvas
  10. Unable to Scroll Frame using Mouse Wheel & Adding Horizontal Scrollbar
  11. Python – pygame error when executing exe file
  12. List of All Tkinter Events
  13. How to pass an argument to event handler in tkinter?
  14. What is the difference between root.destroy() and root.quit()?
  15. Redirect command line results to a tkinter GUI
  16. Changing the options of a OptionMenu when clicking a Button
  17. How to bundle a Python application including dependencies?
  18. How do I create a date picker in tkinter?
  19. Explain Tkinter text search method
  20. tkinter loop and serial write
  21. Simpler way to draw a circle with tkinter?
  22. Difference between “grid” and “pack” geometry managers
  23. Disable the underlying window when a popup is created in Python TKinter
  24. How to put a tkinter window on top of the others?
  25. How to set justification on Tkinter Text box
  26. List available font families in `tkinter`
  27. How to select at the same time from two Listbox?
  28. How do I bundle a Python application including dependencies into a Windows Installer package for distribution?
  29. Python Tkinter PhotoImage
  30. ModX in event.state in tkinter?

Leave a Comment