kombucha batch calculator

kombucha.py

# Calculates the ingridents for each part based on the number gallons
# for the total batch. 110% because I was lazy!

import argparse

parser = argparse.ArgumentParser(description="Easy way to cacluate how much\
    'things you need per quanity of kombuhca")

parser.add_argument('-b', '--batch', type=float,
                    help='Float - Gallons of desired batch size')

args = parser.parse_args()


def convert_gallons_to_cups(gallons):
    return float(gallons * 16)

def convert_cups_to_gallons(cups):
    return float(cups / 16)

batch = convert_gallons_to_cups(args.batch)
water = batch / (1.17)
sugar = batch / (16)
tea = batch / (2)
starter = batch / (8)

print convert_cups_to_gallons(batch)," gallon batch:"
print "   water: ", format(water, '.1f'), " cup(s)"
print "   sugar: ", sugar, " cup(s)"
print "tea bags: ", tea, "bag(s)"
print " starter: ", starter, "cup(s)"