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Practical Tkinter GUI
this example from a Well House Consultants training course
Source code: tki_demo Module: Y204
import Tkinter as tki
import sys # Practical Tkinter GUI # This example shows the major elements of a Tkinter GUI # - Setting up widgets # - Arranging widgets in a geometry # - Acting when widgets are used (e.g. buttons pressed) # - providing feedback within the GUI's window # Example callback routines - to run when an event occurs def door(): print "Selected ...", rubberduck.get() door.hinges += 1 if door.hinges == 5: rubberduck.set("Please be quiet!") def renew(): door.hinges = 0 rubberduck.set("woof") lx.config(text=["Let's try another","AND another"][renew.counter]) renew.counter += 1 renew.counter %= 2 door.hinges = 0 renew.counter = 0 # setting up the main frame root = tki.Tk() root.title("What d'you hear?") # Setting up and positioning a label widget lx = tki.Label(text='Enter your sound') lx.pack(side=tki.TOP,padx=10,pady=10) # Setting up a text entry widget, with a piece of text that relfects the variable # called "rubberduck" within the program. Changes to the variable will be # relected in changes the GUI shows rubberduck = tki.StringVar() rubberduck.set("woof") tki.Entry(root, width=18, textvariable=rubberduck).pack(side=tki.TOP,padx=10,pady=10) # We store both our Entry and Label widget objects into variables so that we can # later on change the values shown / access them from within our callback routines # Add three buttons, and define the callbacks to run if each of them is pressed tki.Button(text='report', command=door).pack(side=tki.LEFT) tki.Button(text='reset', command=renew).pack(side=tki.LEFT) tki.Button(text='exit', command = sys.exit).pack(side=tki.RIGHT) # The sys.exit call is used to exit from the program when that button is pressed # Having set everything up, enter a loop in which we wait for an event and # perform actions ascribed to it when the event is received. The program remains # in mainloop and never returns to any folowing code! root.mainloop() Learn about this subject
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