0070_recipes.py

import shelve

# blt = ['bacon', 'lettuce', 'tomato', 'bread']
# beans_on_toast = ['beans', 'bread']
# scrambled_eggs = ['eggs', 'butter', 'milk']
soup = ['tin of soup']
# pasta = ['pasta', 'cheese']

with shelve.open('./data/recipes', writeback=True) as recipes:
    # recipes['blt'] = blt
    # recipes['beans on toast'] = beans_on_toast
    # recipes['scrambled eggs'] = scrambled_eggs
    # recipes['pasta'] = pasta
    # recipes['soup'] = soup
    # recipes['blt'].append('butter')
    # recipes['pasta'].append('tomato')
    # temp_list = recipes['blt']
    # temp_list.append('butter')
    # recipes['blt'] = temp_list

    # temp_list = recipes['pasta']
    # temp_list.append('tomato')
    # recipes['pasta'] = temp_list

    # recipes['soup'].append('croutons')
    recipes['soup'] = soup
    recipes.sync()
    soup.append('cream')

    for snack in recipes:
        print(snack, recipes[snack])