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basiccalculator.py
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def add(x, y):
return x + y
def subtract(x, y):
return x - y
def multiply(x, y):
return x * y
def divide(x, y):
if y == 0:
return "Error! Division by zero."
return x / y
def calculator():
try:
num1 = float(input("Enter the first number (int or float): "))
num2 = float(input("Enter the second number (int or float): "))
print("Select operation:")
print("1. Add (+)")
print("2. Subtract (-)")
print("3. Multiply (*)")
print("4. Divide (/)")
choice = input("Enter choice (1/2/3/4): ")
if choice == '1':
print(f"{num1} + {num2} = {add(num1, num2)}")
elif choice == '2':
print(f"{num1} - {num2} = {subtract(num1, num2)}")
elif choice == '3':
print(f"{num1} * {num2} = {multiply(num1, num2)}")
elif choice == '4':
print(f"{num1} / {num2} = {divide(num1, num2)}")
else:
print("Invalid input! Please choose a valid operation.")
except ValueError:
print("Invalid input! Please enter a number.")
calculator()