Python Dictionary

Annachi Kadai

In Tamil Nadu there was shop called Annachi Kadai. The owner of the shop is Pandiyan. Now we learn Python using this case study.

Morning:

In the early morning the goods for shop will come. Then Pandiyan will take a note on the goods.

One day the goods came to his shop and he take a note on it. They are:-

inventory = {
    "apples": 20,
    "bananas": 30,
    "carrots": 15,
    "milk": 10
}

He want to check the list.

print(inventory)
 {
    'apples': 20,
    'bananas': 30,
    'carrots': 15,
    'milk': 10
}

Noon:

As the time going the delivery also increases. So he add more inventories.

inventory["bread"] = 25
inventory["eggs"] = 50

Then he want to check the list

print("Updated Inventory:", inventory)

Updated Inventory: {'apples': 20, 'bananas': 30, 'carrots': 15, 'milk': 10, 'bread': 25, 'eggs': 50}

Afternoon:

Then in the afternoon the quantities of the goods is going less. So he buyed some goods and he want that to add it on the list.

inventory["apples"] += 10 
inventory["milk"] += 5

Then he want to check the list

print("Inventory after Restocking:", inventory)

Inventory after Restocking: {'apples': 30, 'bananas': 30, 'carrots': 15, 'milk': 15, 'bread': 25, 'eggs': 50}

Evening:

In evening many of goods have sold. So he want to remove it from the list.

del inventory["carrots"]

then he want to check the list.

print("Inventory after Removal:", inventory)

Inventory after Removal: {'apples': 30, 'bananas': 30, 'milk': 15, 'bread': 25, 'eggs': 50}

Night:

Before closing the shop. He wants to check the inventory is the inventories are correct.

is_bananas_in_stock = "bananas" in inventory
is_oranges_in_stock = "oranges" in inventory
print(f"Are bananas in stock? {is_bananas_in_stock}")
print(f"Are oranges in stock? {is_oranges_in_stock}")

 Are bananas in stock? True
 Are oranges in stock? False

This things only we learnt in the python class.
Thank You