Question

Propose:

In this lab, you will complete a Python program with one partner. This lab will help you with the practice modularizing a Python program.

Instructions (Ask for guidance if necessary):

1. To speed up the process, follow these steps.
   1. Download the ###_###lastnamelab4.py onto your desktop (use your class codes for ### and your last name)
   2. Launch Pyscripter and open the .py file from within Pyscripter.
   3. The code is already included in a form without any functions. Look it over carefully. You will convert it and use functions to accomplish each tasks.

2. Add your class codes and names to the comments at the top as following:

#Name : ###YourLastName

#Name : ###YourLastName

3. This Python program will complete the following program description

   You are asked to modify a program to calculate the cost of renting a vehicle. The user will input the type of rental, the days rented, the mileage driven and their preferred customer status. I want you to evaluate the code for the detail and ask any questions at the start of the lab. It is a good idea to look at all the details and place a checkmark by anything you don’t understand. Your next project will have some of these qualities.

4. Rewrite the code:                                                                                                  

1. At the top of the file I have declared some SYMBOLIC values. Theses are our global constants. We don’t pass these globals because they will be accessible in your functions.
2. The modified version of your program will contain a main function similar to the exercises we completed in class.

Here is the algorithm for the main function

Input rentalCode

            Input numDays

            Input numMiles

            Input prefCust

            call getRentalStr - 1 argument needed, 1 return

            call getRentalCost - 2 arguments needed, 1 return

            call getMileCost -   2 arguments needed, 1 return

            call getPrefDisc – 3 arguments needed, 1 return

            calc finalCost = rentalCost + mileCost - prefDisc

            print output

3. Once you complete the call statements, copy/paste the code into its own function with the appropriate parameters and return statements when needed.
4. Run your code with the following input

Rental Type           Days                Miles            Preferred

1. C                     5                      750                  Y
2. W                    10                    750 N
3. S                      1                      200                  Y

Here is the code given:

# leave these as global constant initialized values
#GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG
WREC_PRICE = 15.00
ECON_PRICE = 25.00
COMP_PRICE = 30.00
SUV_PRICE = 60.00
PER_MILES = 0.25
PREF_DISC = 0.15
#GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG

#==================================================================
#======================== Start of the main function ==============
def main():
    #input
    rentaltype = input("Enter the letter code\nW - Wreck\nE - Economy\nC - Compact\nS - SUV\n: ")
    numDays = int(input("Enter the number of days rented: "))
    numMiles = int(input("Enter the number of miles driven: "))
    prefCust = input("Are you a preferred customer enter Y or N: ")



    #-------------------------------------------------------
    # convert this into a function called getRentalStr
    #-------------------------------------------------------
    if rentaltype == "W" or rentaltype == "w":
        rentaltype = "Wreck"
    elif rentaltype == "E" or rentaltype == "e":
        rentaltype = "Economy"
    elif rentaltype == "C" or rentaltype == "c":
        rentaltype = "Compact"
    elif rentaltype == "S" or rentaltype == "s":
        rentaltype = "SUV"
    #-------------------------------------------------------


    #-------------------------------------------------------
    # convert this into a function called getRentalCost
    #-------------------------------------------------------
    if rentaltype == "Wreck":
        rentalRate =  WREC_PRICE
    elif rentaltype == "Economy":
        rentalRate =  ECON_PRICE
    elif rentaltype == "Compact":
        rentalRate =  COMP_PRICE
    elif rentaltype == "SUV":
        rentalRate =  SUV_PRICE
    rentalCost = rentalRate *  numDays
    #-------------------------------------------------------


    #-------------------------------------------------------
    # convert this into a function called getMileCost
    #-------------------------------------------------------
    excessMiles = numMiles - numDays * 100
    if excessMiles > 0:
        mileCost = excessMiles * PER_MILES
    else:
        mileCost = 0
    #-------------------------------------------------------

    #-------------------------------------------------------
    # convert this into a function called getPrefDisc
    #-------------------------------------------------------
    if prefCust == "Y" or prefCust == "y":
        prefDisc = (rentalCost + mileCost) * PREF_DISC
    else:
        prefDisc = 0
    #-------------------------------------------------------


    finalCost = rentalCost +  mileCost -  prefDisc



    print ("======= Falcon Rentals ==========")
    print ("Rental Type:", rentaltype)
    print ("Days Rented:", numDays)
    print ("Rental Cost     $", format(rentalCost, "7.2f"))
    print ("Mileage Cost    $", format(mileCost, "7.2f"))
    print ("Preferred Disc  $", format(-prefDisc, "7.2f"))
    print ("Final Cost      $", format(finalCost, "7.2f"))
    print ("=================================")

    #EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
main()
input()
# end

Answer 1

# leave these as global constant initialized values
#GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG
WREC_PRICE = 15.00
ECON_PRICE = 25.00
COMP_PRICE = 30.00
SUV_PRICE = 60.00
PER_MILES = 0.25
PREF_DISC = 0.15
#GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG


def getRentalStr(rentaltype):
    if rentaltype == "W" or rentaltype == "w":
        rentaltype = "Wreck"
    elif rentaltype == "E" or rentaltype == "e":
        rentaltype = "Economy"
    elif rentaltype == "C" or rentaltype == "c":
        rentaltype = "Compact"
    elif rentaltype == "S" or rentaltype == "s":
        rentaltype = "SUV"
    return rentaltype

def getRentalCost(rentaltype,numDays):
    if rentaltype == "Wreck":
        rentalRate =  WREC_PRICE
    elif rentaltype == "Economy":
        rentalRate =  ECON_PRICE
    elif rentaltype == "Compact":
        rentalRate =  COMP_PRICE
    elif rentaltype == "SUV":
        rentalRate =  SUV_PRICE
    rentalCost = rentalRate *  numDays
    return rentalCost

def getMileCost(numMiles,numDays):
    excessMiles = numMiles - numDays * 100
    if excessMiles > 0:
        mileCost = excessMiles * PER_MILES
    else:
        mileCost = 0
    return mileCost
def getPrefDisc(prefCust,rentalCost,mileCost):
    if prefCust == "Y" or prefCust == "y":
        prefDisc = (rentalCost + mileCost) * PREF_DISC
    else:
        prefDisc = 0
    return prefDisc
#==================================================================
#======================== Start of the main function ==============
def main():
    #input
    rentaltype = input("Enter the letter code\nW - Wreck\nE - Economy\nC - Compact\nS - SUV\n: ")
    numDays = int(input("Enter the number of days rented: "))
    numMiles = int(input("Enter the number of miles driven: "))
    prefCust = input("Are you a preferred customer enter Y or N: ")



    #-------------------------------------------------------
    # convert this into a function called getRentalStr
    #-------------------------------------------------------
    rentaltype=getRentalStr(rentaltype)
    #-------------------------------------------------------


    #-------------------------------------------------------
    # convert this into a function called getRentalCost
    #-------------------------------------------------------
    rentalCost = getRentalCost(rentaltype,numDays)
    #-------------------------------------------------------


    #-------------------------------------------------------
    # convert this into a function called getMileCost
    #-------------------------------------------------------
    mileCost=getMileCost(numMiles,numDays)
    #-------------------------------------------------------

    #-------------------------------------------------------
    # convert this into a function called getPrefDisc
    #-------------------------------------------------------
    prefDisc=getPrefDisc(prefCust,rentalCost,mileCost)
    #-------------------------------------------------------


    finalCost = rentalCost +  mileCost -  prefDisc



    print ("======= Falcon Rentals ==========")
    print ("Rental Type:", rentaltype)
    print ("Days Rented:", numDays)
    print ("Rental Cost     $", format(rentalCost, "7.2f"))
    print ("Mileage Cost    $", format(mileCost, "7.2f"))
    print ("Preferred Disc  $", format(-prefDisc, "7.2f"))
    print ("Final Cost      $", format(finalCost, "7.2f"))
    print ("=================================")

    #EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
main()
input()
# end