Course Content
Python Data Structures
Python Data Structures
The del Keyword
In Python, you can remove keys from a dictionary using the del
keyword. This allows you to delete specific entries or even clear the entire dictionary. Let's explore how this works using a library-related example.
book = { "title": "Pride and Prejudice", "author": "Jane Austen", "year": 1813, "genre": "Romance", "copies": 5 } # Deleting a key value del book["copies"] print(book)
Deleting the Entire Dictionary
If you want to delete the entire dictionary, you can do so with del
. However, be careful—this action removes the dictionary completely, and any further reference to it will raise an error.
book = { "title": "Pride and Prejudice", "author": "Jane Austen", "year": 1813, "genre": "Romance" } # Deleting the entire dictionary del book # Attempting to print the dictionary after deletion will cause an error print(book) # This line will raise a NameError
Swipe to show code editor
The isbn
key (International Standard Book Number) was incorrectly added. Use the del
keyword to remove it from the dictionary.
Thanks for your feedback!
The del Keyword
In Python, you can remove keys from a dictionary using the del
keyword. This allows you to delete specific entries or even clear the entire dictionary. Let's explore how this works using a library-related example.
book = { "title": "Pride and Prejudice", "author": "Jane Austen", "year": 1813, "genre": "Romance", "copies": 5 } # Deleting a key value del book["copies"] print(book)
Deleting the Entire Dictionary
If you want to delete the entire dictionary, you can do so with del
. However, be careful—this action removes the dictionary completely, and any further reference to it will raise an error.
book = { "title": "Pride and Prejudice", "author": "Jane Austen", "year": 1813, "genre": "Romance" } # Deleting the entire dictionary del book # Attempting to print the dictionary after deletion will cause an error print(book) # This line will raise a NameError
Swipe to show code editor
The isbn
key (International Standard Book Number) was incorrectly added. Use the del
keyword to remove it from the dictionary.
Thanks for your feedback!
The del Keyword
In Python, you can remove keys from a dictionary using the del
keyword. This allows you to delete specific entries or even clear the entire dictionary. Let's explore how this works using a library-related example.
book = { "title": "Pride and Prejudice", "author": "Jane Austen", "year": 1813, "genre": "Romance", "copies": 5 } # Deleting a key value del book["copies"] print(book)
Deleting the Entire Dictionary
If you want to delete the entire dictionary, you can do so with del
. However, be careful—this action removes the dictionary completely, and any further reference to it will raise an error.
book = { "title": "Pride and Prejudice", "author": "Jane Austen", "year": 1813, "genre": "Romance" } # Deleting the entire dictionary del book # Attempting to print the dictionary after deletion will cause an error print(book) # This line will raise a NameError
Swipe to show code editor
The isbn
key (International Standard Book Number) was incorrectly added. Use the del
keyword to remove it from the dictionary.
Thanks for your feedback!
In Python, you can remove keys from a dictionary using the del
keyword. This allows you to delete specific entries or even clear the entire dictionary. Let's explore how this works using a library-related example.
book = { "title": "Pride and Prejudice", "author": "Jane Austen", "year": 1813, "genre": "Romance", "copies": 5 } # Deleting a key value del book["copies"] print(book)
Deleting the Entire Dictionary
If you want to delete the entire dictionary, you can do so with del
. However, be careful—this action removes the dictionary completely, and any further reference to it will raise an error.
book = { "title": "Pride and Prejudice", "author": "Jane Austen", "year": 1813, "genre": "Romance" } # Deleting the entire dictionary del book # Attempting to print the dictionary after deletion will cause an error print(book) # This line will raise a NameError
Swipe to show code editor
The isbn
key (International Standard Book Number) was incorrectly added. Use the del
keyword to remove it from the dictionary.