Bug fix in use of Image with Label widget

Author: adipandas

src/program3.py

@@ -24,34 +24,33 @@ def __init__(self, master):     # constructor method
 
         # store image in the label obj to keep it in the scope as 
         # long as label is displayed and to avoid getting the image getting garbage collected
-        imgpath = 'simple_gif.gif'
-        self.label.img = tk.PhotoImage(file = imgpath)    
-        self.label.config(compound = 'left') # to display image in left of text
-        
+        imgpath = 'simple_gif.gif'      # path of the image
+        self.label.img = tk.PhotoImage(file = imgpath)      # read_image :: saving image within label_object to prevent its garbage collection
+        self.label.config(image = self.label.img)           # display image in label widget
+        self.label.config(compound = 'left')                # to display image in left of text
 
         self.label.pack()       # pack label to the window with pack() geometry method of Label
         self.btn.pack()
-        self.label.config(wraplength = 200)
-        self.label.config(justify = tk.CENTER) # justify can be CENTER, RIGHT, LEFT
+        
+        self.label.config(wraplength = 200)         # specify wraplength of text in label
+        self.label.config(justify = tk.CENTER)      # justify text in label to (CENTER, RIGHT or LEFT)
         self.label.config(foreground = 'blue', background = 'yellow')   # insert font color (foreground) and background color
         self.label.config(font = ('Times', 10, 'bold'))         # font = (font_name, font_size, font_type)
 
-        # store image in the label obj to keep it in the scope as 
-        # long as label is displayed and to avoid getting the image getting garbage collected
-        imgpath = 'simple_gif.gif'
-        self.label.img = tk.PhotoImage(file = imgpath)
-        self.label.config(image = self.label.img)    
-        self.label.config(compound = 'left') # to display image in left of text
-        
     def handle_text(self):
         if self.label['text'] == self.greet_list[0]:
             self.label.config(text = self.greet_list[1])
         else:
             self.label.config(text = self.greet_list[0])
-    
-def test():
+
+
+def GreetingAppLaunch():        # function to use class defined
     root = tk.Tk()
     GreetingApp(root)
     root.mainloop()
+    
+    
+def test():
+    GreetingAppLaunch()
 
 if __name__ == '__main__': test()