FAQ: Function Arguments: *args and **kwargs - Working with **kwargs

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This community-built FAQ covers the “Working with **kwargs” exercise from the lesson “Function Arguments: *args and **kwargs”.

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FAQs on the exercise Working with **kwargs

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2

Hi,

In this exercise ( at page 5/8), the final question #3, after we call the function with the parameters, why do we print(tables) instead of assign_food_items(2,food=‘Seabass, Gnocchi, Pizza’,drinks=‘Margarita, Water’)?
How does the dictionary ‘tables’ and the function ‘assign_food_items’ linked in this exercise?
Thank you

-Vinaa

3

For the below code can someone please explain what the heck is going on?
What are these two lines doing and how?

food = order_items.get(‘food’)
drinks = order_items.get(‘drinks’)

Ive been reading the internet and watching tutorials for days on the .get method. But nothing seems to cover the combination of it being used in **KWARGS.

def assign_food_items(table_number,**order_items):

food = order_items.get(‘food’)
drinks = order_items.get(‘drinks’)
tables[table_number][‘order’][‘food_items’] = food
tables[table_number][‘order’][‘drinks’] = drinks

1 Like
4

Hello. You want to print the tables dictionary to check the result after calling the assign_food_items function, which is responsible for updating the tables after taking the order for table number 2.

5

When you pass keyword arguments using **kwargs syntax you are creating a dictionary. In this case, using the following arguments:

food = "Seabass, Gnocchi, Pizza", drinks="Margarita, Water"

Will create a dictionary like this:

{food: "Seabass, Gnocchi, Pizza", drinks: "Margarita, Water"}

So you when you use the .get() method, you want to get those values and store them in the variables food and drinks, which will be used as parameters in the following lines and will update the tables dictionary.

6

Okay, I got a little confused. Would you assist me? I want to add a menu (food, drink…) to table 1 how could it be done with this code?

table = {}

def assign_table(number, name, vip_status=False):
table[number] = [name, vip_status]

assign_table(1, ‘Karolin’, vip_status=True)
print(table)

assign_table(2, ‘Boby’)
print(table)

def assign_food(**menu):
…

7

tables = {
1: {
‘name’: ‘Chioma’,
‘vip_status’: False,
‘order’: {
‘drinks’: ‘Orange Juice, Apple Juice’,
‘food_items’: ‘Pancakes’

def assign_food_items(table_number, **order_items):
food = order_items.get(‘food’)
drinks = order_items.get(‘drinks’)
tables[table_number][‘order’][‘food_items’] = food
tables[table_number][‘order’][‘drinks’] = drinks
print(‘\n — tables after update — \n’,tables)

we can see that from the initial tables we have food_items as a subkey under the orders subkey
but when we defined the assign_food_items() function we use the order_items.get(food) rather than order_items.get(food_items) and it still worked why?