1+ '''
2+ Created on Aug 12, 2017
3+
4+ @author: Aditya
5+ '''
6+ import tkinter as tk
7+ from tkinter import ttk
8+ 9+ def sayhello ():
10+ root = tk .Tk () # call Tk constructor method to create new top level widget (main window)
11+ 12+ # Below statement creates a label with text as a
13+ # child of root window and use pack geometry management method to put text on window
14+ tk .Label (root , text = 'Hello Python GUI' ).pack ()
15+ 16+ # ttk = themed tk widgets
17+ # create button using 'themed tk widgets' (ttk)
18+ # parent widget of button-widget is defined as 'root' variable
19+ # text displayed on button defined as text = 'Click Me'
20+ button = ttk .Button (root , text = 'Click ME' )
21+ button .pack () # pack the button
22+ 23+ 24+ # find value of property from widget object
25+ prop_text = button ['text' ]
26+ print ('Value of \' {}\' property in button_obj is {}' .format ('text' , prop_text ))
27+ 28+ # change value on button : (Note values stored as dictionary in object)
29+ button ['text' ] = 'Press ME'
30+ 31+ # use config command
32+ button .config (text = 'Push ME' )
33+ 34+ # To print the value of all propertise of widget object
35+ print (button .config ())
36+ 37+ # underlying TK name of the widget:
38+ # tkinter generates random number as a unique identifier (name) for each widget created
39+ print (str (button ))
40+ print (str (root )) # 'rood window is identified as a '.' by tkinter (underlying name)
41+ 42+ 43+ root .mainloop () # run mainloop method for run window
44+ 45+ def test ():
46+ sayhello ()
47+ if __name__ == '__main__' :test ()
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