return string from function with one argument

[deanhystad]

The solution is the same solution I would use for solving this with C, create an association between the shipping cost function and the shipping cost name. In Python I might use a dictionary.

def ground_shipping_cost(weight):
  cost = weight * 4.00
  return cost
 
def drone_shipping_cost(weight):
  cost = weight * 4.50
  return cost

def premium_ground_cost(weight):
    return 125

shipping_options = {
    'Ground': ground_shipping_cost,
    'Drone': drone_shipping_cost,
    'Premium Ground' : premium_ground_cost
    }

def method_is_cheapest(weight):
    option = None
    min_cost = 0
    for name in shipping_options:
        cost = shipping_options[name](weight)
        if cost < min_cost or option is None:
            min_cost = cost
            option = name
    return option

weight = float(input('Enter package weight: '))
option = method_is_cheapest(weight)
cost = shipping_options[option](weight)
print(f'Shipping {option} is the cheapest at ${cost:.2f}')