I am pretty new to programming as a whole and was trying to program a calculator in python.

```
calc_version = input("Please choose a calc type (1/2)")
if calc_version == 1:
    calc_type = input("Enter Function (Add/Sub/Div/Mult) ")
    number1 = input("Please enter the first number ")
    number2 = input("Please enter the second number ")
    if calc_type == "Add":
        Sum = float(number1) + float(number2)
    if calc_type == "Sub":
        Sum = float(number1) - float(number2)
    if calc_type == "Div":
        Sum = float(number1) / float(number2)
    if calc_type == "Mult":
        Sum = float(number1) * float(number2)
    print("The sum of" ,number1, "and" ,number2, "is" ,Sum,)
if calc_version == 2:
    number1 = input("Please enter the first number ")
    operator = ("Please choose an operator (+,-,*,/)")
    number2 = input("Please enter the second number ")
    if operator == "+":
        Sum = float(number1) + float(number2)
    if operator == "-":
        Sum = float(number1) - float(number2)
    if operator == "/":
        Sum = float(number1) / float(number2)
    if operator == "*":
        Sum = float(number1) * float(number2)
    print("The sum of" ,number1, "and" ,number2, "is" ,Sum,)

```

It was working fine until I added a second version under the first, the `calc_version = input("Please choose a calc type (1/2)"` line appears to have broken my whole code as nothing prints at all.
If anyone could tell me what I am doing wrong it would be a great help.