how to make a complex calculator in python

Just Ctrl-C and Ctrl-V

num1 = float(input("Enter first number... "))
op = input("Enter an Operation... ")
num2 = float(input("Enter second number... "))
if op == ("+"):
    print(num1+num2)
elif op == ("-"):
    print(num1-num2)
elif op == ("*"):
    print(num1 * num2)
elif op == ("/"):
    print(num1/num2)

Here is what the above code is Doing:
1. It’s asking for the first number
2. It’s asking for the operation
3. It’s asking for the second number
4. It’s checking if the operation is +, -, *, or /
5. If it is, it does the operation
6. If it’s not, it does nothing