Python Tkinter program for Status Bar

Question

from Tkinter import *
class StatusBar(Frame):   
    def __init__(self, master):
        Frame.__init__(self, master)
        self.label = Label(self, bd=1, relief=SUNKEN, anchor=W)
        self.label.pack(fill=X)        
    def set(self, format, *args):
        self.label.config(text=format % args)
        self.label.update_idletasks()
    def clear(self):
        self.label.config(text="")
        self.label.update_idletasks()
root = Tk()
root.update()
d =StatusBar(root)

d.pack()
mainloop()

Hi Friend.This is my code for Status bar.Even though i didn't get any error or warning. I had failed to obtain the status bar. But my Widget is getting opened with empty in it.Can any one please help me in this aspect.

Thank you

Answer 1

It's there; it's just very small because none of the widgets requested much space. If you put some text in the Label, or gave root a geometry, it would be easier to see:

import Tkinter as tk
class StatusBar(tk.Frame):   
    def __init__(self, master):
        tk.Frame.__init__(self, master)
        self.variable=tk.StringVar()        
        self.label=tk.Label(self, bd=1, relief=tk.SUNKEN, anchor=tk.W,
                           textvariable=self.variable,
                           font=('arial',16,'normal'))
        self.variable.set('Status Bar')
        self.label.pack(fill=tk.X)        
        self.pack()

root=tk.Tk()
d=StatusBar(root)
root.geometry('300x100')
root.mainloop()

---

By the way, to allow the text inside the label to change, use a tk.StringVar. Calling self.variable.set(...) will change the label's text. And to clear it just call self.variable.set('').