Bind variable to Label : Label « GUI Tk « Python

Python
1. 2D
2. Application
3. Buildin Function
4. Class
5. Data Structure
6. Data Type
7. Database
8. Development
9. Dictionary
10. Event
11. Exception
12. File
13. Function
14. GUI Pmw
15. GUI Tk
16. Language Basics
17. List
18. Math
19. Network
20. String
21. System
22. Thread
23. Tuple
24. Utility
25. XML
Java
Java Tutorial
Java Source Code / Java Documentation
Java Open Source
Jar File Download
Java Articles
Java Products
Java by API
Photoshop Tutorials
Maya Tutorials
Flash Tutorials
3ds-Max Tutorials
Illustrator Tutorials
GIMP Tutorials
C# / C Sharp
C# / CSharp Tutorial
C# / CSharp Open Source
ASP.Net
ASP.NET Tutorial
JavaScript DHTML
JavaScript Tutorial
JavaScript Reference
HTML / CSS
HTML CSS Reference
C / ANSI-C
C Tutorial
C++
C++ Tutorial
Ruby
PHP
Python Tutorial
Python Open Source
SQL Server / T-SQL
SQL Server / T-SQL Tutorial
Oracle PL / SQL
Oracle PL/SQL Tutorial
PostgreSQL
SQL / MySQL
MySQL Tutorial
VB.Net
VB.Net Tutorial
Flash / Flex / ActionScript
VBA / Excel / Access / Word
XML
XML Tutorial
Microsoft Office PowerPoint 2007 Tutorial
Microsoft Office Excel 2007 Tutorial
Microsoft Office Word 2007 Tutorial
Python » GUI Tk » LabelScreenshots 
Bind variable to Label
 

#!/usr/bin/env python
from Tkinter import *
import math

root = Tk()
top = Frame(root
top.pack(side='top')

hwtext = Label(top, text='Hello, World! The sine of')
hwtext.pack(side='top')

r = StringVar() 
r.set('1.2')    
r_entry = Entry(top, width=6, textvariable=r)
r_entry.pack(side='top')

s = StringVar() 
def comp_s(event):
    global s
    s.set('%g' % math.sin(float(r.get()))) # construct string

r_entry.bind('<Return>', comp_s)

compute = Label(top, text=' equals ')
compute.pack(side='top')

s_label = Label(top, textvariable=s, width=18)
s_label.pack(side='top')

import tkMessageBox
def quit(event):
    if tkMessageBox.askokcancel('Quit','Do you really want to quit?'):
        root.destroy()

root.bind('<q>', quit)

root.mainloop()

   
  
Related examples in the same category
1. A label and a buttonA label and a button
2. Basic coding styles with labelsBasic coding styles with labels
3. Set side to topSet side to top
4. Add a label to a frameAdd a label to a frame
5. Load image to label
6. Label wraplength
7. Set text and font for Label
8. Label styleLabel style
9. Label on frameLabel on frame
10. Label border: RAISED, SUNKEN, FLAT, RIDGE, GROOVE, SOLIDLabel border: RAISED, SUNKEN, FLAT, RIDGE, GROOVE, SOLID
11. Our First Tkinter Program: a label and a windowOur First Tkinter Program: a label and a window
12. Simplest LabelSimplest Label
13. Label background and foregroundLabel background and foreground
14. StringVar and Label variable
15. Label width and heightLabel width and height
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.