Using the del Keyword: Removing Dictionary Entries
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.
del dict[key]
123456789101112book = { "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 carefulβthis action removes the dictionary completely, and any further reference to it will raise an error.
1234567891011book = { "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 start coding
We are continuing to work with the dictionary authors_books
.
- Remove the element with the key
"J.K. Rowling"
from the dictionary. - Use the
del
keyword to do this.
Solution
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Using the del Keyword: Removing Dictionary Entries
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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.
del dict[key]
123456789101112book = { "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 carefulβthis action removes the dictionary completely, and any further reference to it will raise an error.
1234567891011book = { "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 start coding
We are continuing to work with the dictionary authors_books
.
- Remove the element with the key
"J.K. Rowling"
from the dictionary. - Use the
del
keyword to do this.
Solution
Thanks for your feedback!
Awesome!
Completion rate improved to 3.23single