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SimpleCalculator.py
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SimpleCalculator.py
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import tkinter as tk
def button_click(symbol):
current = entry.get()
if current == "Error":
entry.delete(0, tk.END)
entry.insert(tk.END, symbol)
def clear():
entry.delete(0, tk.END)
def calculate():
try:
result = eval(entry.get())
entry.delete(0, tk.END)
entry.insert(tk.END, str(result))
except Exception:
entry.delete(0, tk.END)
entry.insert(tk.END, "Error")
# Creating the main window
root = tk.Tk()
root.title("Simple Calculator")
# Entry widget to display input and output
entry = tk.Entry(root, width=30, borderwidth=5)
entry.grid(row=0, column=0, columnspan=4, padx=10, pady=10)
# Define buttons
buttons = [
('7', 1, 0), ('8', 1, 1), ('9', 1, 2), ('/', 1, 3),
('4', 2, 0), ('5', 2, 1), ('6', 2, 2), ('*', 2, 3),
('1', 3, 0), ('2', 3, 1), ('3', 3, 2), ('-', 3, 3),
('0', 4, 0), ('.', 4, 1), ('=', 4, 2), ('+', 4, 3)
]
# Create buttons and assign functionality
for symbol, row, col in buttons:
if symbol == '=':
btn = tk.Button(root, text=symbol, padx=20, pady=20, command=calculate)
elif symbol == 'C':
btn = tk.Button(root, text=symbol, padx=20, pady=20, command=clear)
else:
btn = tk.Button(root, text=symbol, padx=20, pady=20, command=lambda s=symbol: button_click(s))
btn.grid(row=row, column=col, padx=5, pady=5)
root.mainloop()