Tip Calculator, version 4

gistfile1.txt

#!/usr/bin/python

from __future__ import division
import argparse

parser = argparse.ArgumentParser()

parser.add_argument(
    "--mealcost",
    type=float,
    required=True,
    help="The cost of the meal without before tax or tip"
)

parser.add_argument(
    "--tax",
    type=float,
    required=True,
    default=10,
    help="The percentage of tax. Do not include percent sign"
)

parser.add_argument(
    "--tip",
    type=float,
    required=True,
    help="The percentage for the tip. Do not include percent sign"
)

args = parser.parse_args()

mealcost = args.mealcost
tax      = args.tax
tip      = args.tip

# return the amount of tax that is payable on the meal
def tax_payable():
    return mealcost * ( tax / 100)

#return the due tip amount     
def tip_payable():
    return mealcost * (tip / 100)

def meal_total():
    tip = tip_payable()
    tax = tax_payable()
    return mealcost + tip + tax 

def meal_plus_tax():
    return mealcost + tax_payable()

def meal_plus_tip():
    return mealcost + tip_payable()

def tc_format(n):
    return "$%.2f" % n


#output our results
def printall():
    print "The cost of meal plus tax is:"  + tc_format(meal_plus_tax())
    print "The cost of meal plus tip is: " + tc_format(meal_plus_tip())
    print "The all-inclusive cost: "       + tc_format(meal_total())

printall()

Thinkful homework for python course.