pyzza.py

# Pizza calculator with baker's percentage
# Features: Default master dough recipe, other recipes, mostly from
# The Pizza Bible, custom %, saving custom %
recipes = {'masterdough': {'water': 64, 'salt': 2, 'yeast': 1, 'oil': 1,
           'malt': 2},
           'chicago': {'water': 60, 'salt': 2, 'yeast': 0.1, 'lard': 1,
                       'butter': 1},
           'sicilian': {'water': 70, 'salt': 2, 'yeast': 1, 'malt': 2,
                        'oil': 1},
           'refrigerated': {'water': 70, 'salt': 2.6, 'yeast': 0.3}}
leftWidth = 12
rightWidth = 7

def bakerCalc(flour, dough, style):
    print(style.upper().center(leftWidth + rightWidth, '-'))
    for i in dough[style].keys():
        ingredient = int(flour) * int(dough[style][i]) / 100
        print(i.title().ljust(leftWidth, '.') + str(ingredient).rjust(rightWidth))

print('Enter a desired flour amount or type "recipes" or "custom" for other'
      ' options:')
choice = input('>').lower()
if choice == 'recipes':
    while True:
        for r in recipes.keys():
            print(r)
        chooseDough = input('Choose one of the above recipes: ').lower()
        if chooseDough not in recipes.keys():
            print(chooseDough + ' is not in the list of recipes!')
        else:
            break
    customFlour = input('Enter the desired amount of flour: ')
    bakerCalc(customFlour, recipes, chooseDough)
elif choice == 'custom':
    # ask for every ingredient, add it to a dict
    customFlour = input('Flour: ')
    print('Enter your custom percentages:')
    newRecipe = {}
    for i in recipes['refrigerated'].keys():
        percentage = input(i + ': ')
        newRecipe[i] = percentage
    for i in newRecipe.keys():
        ingredient = int(customFlour) * int(newRecipe[i]) / 100
        print(i + ': ' + str(ingredient))
elif choice.isdigit():
   bakerCalc(choice, recipes, 'masterdough')
else:
    print(choice + ' is not a valid choice, enter a desired flour amount or'
                   'type "recipe" or "custom" for other options')