Python GUI Program to Calculate Age

Python GUI Program to Calculate Age

 

 

Certainly! Below is a Python program using the tkinter library to create a simple GUI that accepts a date of birth and calculates the age.

 

import tkinter as tk
from tkinter import messagebox
from datetime import datetime

def calculate_age():
    dob_str = entry_dob.get()
    try:
        dob = datetime.strptime(dob_str, "%Y-%m-%d")
        today = datetime.today()
        age = today.year - dob.year - ((today.month, today.day) < (dob.month, dob.day))
        messagebox.showinfo("Age Calculator", f"Your age is: {age} years")
    except ValueError:
        messagebox.showerror("Error", "Please enter the date in YYYY-MM-DD format")

# Create the main window
root = tk.Tk()
root.title("Age Calculator")

# Create a label and entry for date of birth
label_dob = tk.Label(root, text="Enter your date of birth (YYYY-MM-DD):")
label_dob.pack(pady=10)

entry_dob = tk.Entry(root)
entry_dob.pack(pady=10)

# Create a button to calculate age
button_calculate = tk.Button(root, text="Calculate Age", command=calculate_age)
button_calculate.pack(pady=20)

# Run the application
root.mainloop() 

How the Program Works:

Importing Libraries:

tkinter is used to create the GUI.

datetime is used to handle date operations.

calculate_age Function:

This function retrieves the date of birth from the entry widget.

It then calculates the age by comparing the current date with the date of birth.

If the date is entered in the wrong format, an error message is displayed.

Creating the GUI:

A label and an entry widget are created to accept the date of birth.

A button is provided to trigger the age calculation.

Running the Application:

The mainloop() method is called to start the GUI event loop.

How to Run:

 
Save the code to a file, e.g., age_calculator.py.

Run the file using Python: python age_calculator.py.

Enter your date of birth in the format YYYY-MM-DD and click "Calculate Age".

This will display a message box with your calculated age.