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Learn Accessing Dictionary Values | Mastering Python Dictionaries
Python Data Structures

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Accessing Dictionary Values

Let's build a dictionary to represent a book in a library:

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book = {"title": "Pride and Prejudice", "author": "Jane Austen", "year": 1813} print(book)
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This dictionary includes three key-value pairs:

In a dictionary, you can retrieve an item by referencing its key. Here's an example of accessing the publication year of the book:

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book = {"title": "Pride and Prejudice", "author": "Jane Austen", "year": 1813} publication_year = book["year"] print(publication_year) # Output: 1813
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In the code provided:

  • Python searches for the key "year" in the book dictionary;

  • It retrieves the value associated with the key (1813) and assigns it to the variable publication_year.

The value is then printed, demonstrating how keys allow quick and specific access to dictionary values.

Task

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You are given a dictionary authors_books where the book author is the key and the list of book titles is the value.

  • Initialize the variable kings_books as a list of Stephen King's books.
  • Initialize the variable shekspeares_books as a list of Shakespeare's books.
  • You should initialize the variables by getting the data from the dictionary using the key.

Solution

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SectionΒ 2. ChapterΒ 2

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book
Accessing Dictionary Values

Let's build a dictionary to represent a book in a library:

12
book = {"title": "Pride and Prejudice", "author": "Jane Austen", "year": 1813} print(book)
copy

This dictionary includes three key-value pairs:

In a dictionary, you can retrieve an item by referencing its key. Here's an example of accessing the publication year of the book:

1234
book = {"title": "Pride and Prejudice", "author": "Jane Austen", "year": 1813} publication_year = book["year"] print(publication_year) # Output: 1813
copy

In the code provided:

  • Python searches for the key "year" in the book dictionary;

  • It retrieves the value associated with the key (1813) and assigns it to the variable publication_year.

The value is then printed, demonstrating how keys allow quick and specific access to dictionary values.

Task

Swipe to start coding

You are given a dictionary authors_books where the book author is the key and the list of book titles is the value.

  • Initialize the variable kings_books as a list of Stephen King's books.
  • Initialize the variable shekspeares_books as a list of Shakespeare's books.
  • You should initialize the variables by getting the data from the dictionary using the key.

Solution

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

SectionΒ 2. ChapterΒ 2
Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
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