How to make a basic calcuator app using python | Coding for beginners | Step by step tutorial

so basically this video tells you how to make a calculator, good for beginners
Enter this code on python: # This function adds two numbers
def add(x, y):
return x + y

# This function subtracts two numbers
def subtract(x, y):
return x - y

# This function multiplies two numbers
def multiply(x, y):
return x * y

# This function divides two numbers
def divide(x, y):
return x / y


print("Select operation.")
print("1.Add")
print("2.Subtract")
print("3.Multiply")
print("4.Divide")

while True:
# take input from the user
choice = input("Enter choice(1/2/3/4): ")

# check if choice is one of the four options
if choice in ('1', '2', '3', '4'):
try:
num1 = float(input("Enter first number: "))
num2 = float(input("Enter second number: "))
except ValueError:
print("Invalid input. Please enter a number.")
continue

if choice == '1':
print(num1, "+", num2, "=", add(num1, num2))

elif choice == '2':
print(num1, "-", num2, "=", subtract(num1, num2))

elif choice == '3':
print(num1, "*", num2, "=", multiply(num1, num2))

elif choice == '4':
print(num1, "/", num2, "=", divide(num1, num2))

# check if user wants another calculation
# break the while loop if answer is no
next_calculation = input("Let's do next calculation? (yes/no): ")
if next_calculation == "no":
break
else:
print("Invalid Input")


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