# Ask user to enter an expression and display output
def main():
    expression = input("Expression: ")

    print(calculate(splitter(expression)))


# Split expression into components and assign to variables as float values
def splitter(expression):
    x, y, z = expression.split()

    return x, y, z

# Calculate expression result
def calculate(x, y, z):
    x, z = float(x), float(z)

    if y == "+":
        return str(round((x + z), 1))
    elif y == "-":
        return str(round((x - z), 1))
    elif y == "*":
        return str(round((x * z), 1))
    else:
        return str(round((x / z), 1))



main()

I am getting traceback errors for any expression (1 + 1) I enter.

  • FizzyOrange
    2·
    3 hours ago

    Yeah others have pointer out the error, but I want to really recommend using VSCode with the Python extension and static types. It will make finding these errors super easy because it adds a red underline exactly where the problem is.

    Static types means:

    def splitter(expression: str) -> tuple[str, str, str]:
...
def calculate(x: str, y: str, z: str) -> str: