Dictionary Methods in Python

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Dictionary Methods in Python

Python dictionaries come with several built-in methods that help you manage, access, and modify data efficiently. Below is a rewritten explanation of the most commonly used dictionary methods, along with fresh examples for better understanding.

clear()

Removes all items from the dictionary.

cart = {"item": "Shoes", "price": 2999} cart.clear() print(cart) Try it Yourself

copy()

Creates and returns a separate copy of the dictionary.

profile = {"username": "max_m", "followers": 120} backup_profile = profile.copy() print(backup_profile) Try it Yourself

fromkeys()

Creates a new dictionary using the specified keys and a single default value.

subjects = ["Math", "Science", "English"] marks = dict.fromkeys(subjects, 0) print(marks) Try it Yourself

get()

Returns the value of a given key. If the key does not exist, it returns None (or a default value).

user = {"name": "Aisha", "age": 22} print(user.get("age")) Try it Yourself

items()

Returns a view object containing key–value pairs as tuples.

scores = {"Tom": 85, "Jerry": 90} print(scores.items()) Try it Yourself

keys()

Returns a view object containing all dictionary keys.

settings = {"theme": "dark", "language": "English"} print(settings.keys()) Try it Yourself

pop()

Removes the item with the specified key and returns its value.

inventory = {"pen": 10, "pencil": 20} inventory.pop("pen") print(inventory) Try it Yourself

popitem()

Removes and returns the last inserted key–value pair.

orders = {"order1": 250, "order2": 450} orders.popitem() print(orders) Try it Yourself

setdefault()

Returns the value of a key. If the key does not exist, it inserts the key with a default value.

config = {"mode": "auto"} config.setdefault("timeout", 30) print(config) Try it Yourself

update()

Updates the dictionary with new or existing key–value pairs.

employee = {"name": "Rahul", "role": "Developer"} employee.update({"role": "Senior Developer", "salary": 80000}) print(employee) Try it Yourself

values()

Returns a view object containing all dictionary values.

prices = {"apple": 120, "banana": 40} print(prices.values()) Try it Yourself

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