Das deutsche Python-Forum

Code: Alles auswählen

from tkinter import *
from tkinter import messagebox
import time
from datetime import datetime


def on_closing():
    if messagebox.askokcancel("Beenden", "Wollen Sie wirklich das Programm beenden?"):
        global running
        running = FALSE
        root.destroy()

# Main Window
root = Tk()
root.geometry("595x500+300+300")
root.wm_resizable(width=False, height=False)
root.title("TestGUI")

menu = Menu(root)
root.config(menu=menu)
statusbar = Label(root, text="", bd=1, relief=SUNKEN, anchor=W)
statusbar.pack(side=BOTTOM, fill=X)

running = True

def main():
    while running:
        root.update_idletasks()
        root.update()
        time.sleep(0.5)
        lt = '{:%d.%m.%Y %H:%M:%S}'.format(datetime.now())
        statusbar['text'] = lt
        root.protocol("WM_DELETE_WINDOW", on_closing)



if __name__ == '__main__':
    main()

Code: Alles auswählen

D:\Privat\PyCharm\Countdown\venv\Scripts\python.exe C:/Users/xxx/.PyCharmCE2019.3/config/scratches/scratch_13.py
Traceback (most recent call last):
  File "C:/Users/xxx/.PyCharmCE2019.3/config/scratches/scratch_13.py", line 38, in <module>
    main()
  File "C:/Users/xxx/.PyCharmCE2019.3/config/scratches/scratch_13.py", line 32, in main
    statusbar['text'] = lt
  File "D:\Privat\Python\lib\tkinter\__init__.py", line 1648, in __setitem__
    self.configure({key: value})
  File "D:\Privat\Python\lib\tkinter\__init__.py", line 1637, in configure
    return self._configure('configure', cnf, kw)
  File "D:\Privat\Python\lib\tkinter\__init__.py", line 1627, in _configure
    self.tk.call(_flatten((self._w, cmd)) + self._options(cnf))
_tkinter.TclError: invalid command name ".!label"

Process finished with exit code 1

Code: Alles auswählen

import tkinter as tk
from tkinter import messagebox
from datetime import datetime
from functools import partial

def update(statusbar):
    statusbar['text'] = '{:%d.%m.%Y %H:%M:%S}'.format(datetime.now())
    statusbar.after(500, update, statusbar)

def on_closing(root):
    if messagebox.askokcancel("Beenden", "Wollen Sie wirklich das Programm beenden?"):
        root.destroy()

def main():
    root = tk.Tk()
    root.geometry("595x500+300+300")
    root.wm_resizable(width=False, height=False)
    root.title("TestGUI")
  
    menu = tk.Menu(root)
    root.config(menu=menu)
    statusbar = tk.Label(root, text="", bd=1, relief=tk.SUNKEN, anchor=tk.W)
    statusbar.pack(side=tk.BOTTOM, fill=tk.X)
    update(statusbar)
    root.protocol("WM_DELETE_WINDOW", partial(on_closing, root))
    root.mainloop()

if __name__ == '__main__':
    main()