import tkinter as tk
from tkinter import ttk

class TemperatureConverter:
    def __init__(self, root):
        self.root = root
        self.root.title("Temperature Converter")

self.create_widgets()

def create_widgets(self):
        # Entry for Temperature
        temperature_label = ttk.Label(self.root, text="Enter Temperature:")
        temperature_label.grid(row=0, column=0, padx=10, pady=10, sticky=tk.W)

self.temperature_entry = ttk.Entry(self.root)
        self.temperature_entry.grid(row=0, column=1, padx=10, pady=10)

# Radio Buttons for Unit Selection
        unit_label = ttk.Label(self.root, text="Select Unit:")
        unit_label.grid(row=1, column=0, padx=10, pady=10, sticky=tk.W)

self.unit_var = tk.StringVar(value="Celsius")

celsius_radio = ttk.Radiobutton(self.root, text="Celsius", variable=self.unit_var, value="Celsius")
        celsius_radio.grid(row=1, column=1, padx=10, pady=5, sticky=tk.W)

fahrenheit_radio = ttk.Radiobutton(self.root, text="Fahrenheit", variable=self.unit_var, value="Fahrenheit")
        fahrenheit_radio.grid(row=1, column=2, padx=10, pady=5, sticky=tk.W)

# Convert Button
        convert_button = ttk.Button(self.root, text="Convert", command=self.convert_temperature)
        convert_button.grid(row=2, column=0, columnspan=3, pady=10)

# Result Label
        self.result_label = ttk.Label(self.root, text="")
        self.result_label.grid(row=3, column=0, columnspan=3, pady=10)

def convert_temperature(self):
        try:
            temperature = float(self.temperature_entry.get())

if self.unit_var.get() == "Celsius":
                converted_temperature = (temperature * 9/5) + 32
                result_text = f"{temperature:.2f} Celsius is {converted_temperature:.2f} Fahrenheit."
            else:
                converted_temperature = (temperature - 32) * 5/9
                result_text = f"{temperature:.2f} Fahrenheit is {converted_temperature:.2f} Celsius."

self.result_label.config(text=result_text)
        except ValueError:
            self.result_label.config(text="Invalid input. Please enter a valid number.")

# Create the main window
root = tk.Tk()

# Create the TemperatureConverter instance
temperature_converter = TemperatureConverter(root)

# Start the Tkinter event loop
root.mainloop()

O Level Exam : Practical Question

🖥 Output: