Help with dictionaries

[borrowedcarbon]

To get the value from a dictionary, use dict_name[key]. In your assignment, dictShopping['soap'] will return the value '10'.

Using a variable named item allows easy switches of item name without reformatting the print string.

# first string formatting option
dictShopping = {'soap': '10', 'bread': '5', 'shampoo': '8'}
dictSelling = {'soap': '20.50', 'bread': '25.99', 'shampoo': '80'}

item = 'soap'
print('The shopping center has {} quantities of bread which cost {} dollars each.'.format(dictShopping[item], dictSelling[item]))

In case you are using python 3.6+, this version is better - it uses f strings instead of .format()

# format string using f strings (python 3.6+)
dictShopping = {'soap': '10', 'bread': '5', 'shampoo': '8'}
dictSelling = {'soap': '20.50', 'bread': '25.99', 'shampoo': '80'}

item = 'soap'
print(f'The shopping center has {dictShopping[item]} quantities of bread which cost {dictSelling[item]} dollars each.')