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script.py

# Sal's Shipping - Python Project
# Finding the Cheapest Shipping Method
# STEP 1: Ship cost by weight - Normal Ground Shipping
def cost_gnd_ship(weight):
  if (weight <= 2):
    cost = (weight*1.50) + 20.00
  elif (weight > 2) and (weight <= 6):
    cost = (weight*3.00) + 20.00
  elif (weight > 6) and (weight <= 10):
    cost = (weight*4.00) + 20.00
  else:
    cost = (weight*4.75) + 20.00
  return cost
      
# STEP 2: Testing the function with a package of 8.4 lb
print("The price of this shipment will be: US$ " + str(cost_gnd_ship(8.4)))

# STEP 3: Including the Premium Gorund Shipping Cost
premium_gnd_ship = 125

# STEP 4: Defining the function for cost of the drone shipping
def cost_drone_gnd_ship(weight):
  if (weight <= 2):
    cost = weight*4.50
  elif (weight > 2) and (weight <= 6):
    cost = weight*9.00
  elif (weight > 6) and (weight <= 10):
    cost = weight*12.00
  else:
    cost = weight*14.25
  return cost

# STEP 5: Testing the drone function with a package of 1.5 lb
print("The price of this shipment will be: US$ " + str(cost_drone_gnd_ship(1.5)))

# STEP 6: Advising te customer about the best shipping method
def best_choice_ship(weight):
  gnd = cost_gnd_ship(weight)
  drn = cost_drone_gnd_ship(weight)
  prm = premium_gnd_ship
  if (gnd < drn) and (gnd < prm):
    return "The lower cost method for this shipment is the Ground shipping and it costs: US$ " + str(gnd)
  elif (drn < gnd) and (drn < prm):
    return "The lower cost method for this shipment is the Drone shipping and it costs: US$ " + str(drn)
  else:
    return "The lower cost method for this shipment is the Premium shipping and it costs: US$ " + str(prm)
  
# STEP 7: Testing the function that suggests the best price with the best method with two values (and many others)
print(best_choice_ship(0.8))
print(best_choice_ship(4.8))
print(best_choice_ship(41.5))