update: Update with documentation.

Update the counter app with comments and documentation.

Author: NitkarshChourasia

nitkarshchourasia/GUI_apps/tkinter_apps/counter_app/counter_app.py

@@ -1,42 +1,69 @@
+# Author: Nitkarsh Chourasia
+# Date created: 28/12/2023
+
+# Import the required libraries
 import tkinter as tk
 from tkinter import ttk
 
-# Creating a counter app using tkinter
-
 
 class MyApplication:
+    """A class to create a counter app."""
+
     def __init__(self, master):
+        # Initialize the master window
         self.master = master
+        # Set the title and geometry of the master window
         self.master.title("Counter App")
         self.master.geometry("300x300")
 
+        # Create the widgets
         self.create_widgets()
 
+    # Create the widgets
     def create_widgets(self):
+        # Create a frame to hold the widgets
         frame = ttk.Frame(self.master)
+        # Pack the frame to the master window
         frame.pack(padx=20, pady=20)
 
+        # Create a label to display the counter
         self.label = ttk.Label(frame, text="0", font=("Arial Bold", 70))
+        # Grid the label to the frame
         self.label.grid(row=0, column=0, padx=20, pady=20)
 
+        # Add a button for interaction to increase the counter
         add_button = ttk.Button(frame, text="Add", command=self.on_add_click)
+        # Grid the button to the frame
         add_button.grid(row=1, column=0, pady=10)
 
+        # Add a button for interaction to decrease the counter
         remove_button = ttk.Button(frame, text="Remove", command=self.on_remove_click)
+        # Grid the button to the frame
         remove_button.grid(row=2, column=0, pady=10)
 
+    # Add a click event handler
     def on_add_click(self):
+        # Get the current text of the label
         current_text = self.label.cget("text")
+        # Convert the text to an integer and add 1
         new_text = int(current_text) + 1
+        # Set the new text to the label
         self.label.config(text=new_text)
 
+    # Add a click event handler
     def on_remove_click(self):
+        # Get the current text of the label
         current_text = self.label.cget("text")
+        # Convert the text to an integer and subtract 1
         new_text = int(current_text) - 1
+        # Set the new text to the label
         self.label.config(text=new_text)
 
 
 if __name__ == "__main__":
+    # Create the root window
     root = tk.Tk()
+    # Create an instance of the application
     app = MyApplication(root)
+    # Run the app
     root.mainloop()