Day 10 - PyCalculator 2

def add(n1, n2):
    """Add n1 and n2 then returns the result"""
    return n1 + n2

def subtract(n1, n2):
    """Subtracts n1 and n2 then returns the result"""
    return n1 - n2

def multiply(n1, n2):
    """Multiplies n1 by n2 and returns the result"""
    return n1 * n2

def divide(n1, n2):
    """Divides n1 by n2 and returns the result"""
    return n1 / n2

operations = {
    "+": add,
    "-": subtract,
    "*": multiply,
    "/": divide
}
is_on = True
def calculator():
    num1 = float(input("First Number: "))
    for key in operations:
        print(key)

    while is_on == True:
        symbol = input("Pick an operation: ")
        num2 = float(input("Next Number: "))
        calculate = operations[symbol]
        answer = calculate(num1, num2)
        print(f"{num1} {symbol} {num2} = {answer}")
        if input(f"Type 'y' to continue calculating with {answer} or 'n' to start a new calculation") == "y":
            num1 = answer
        else:
           calculator()
calculator()