Python Dictionary Excitement!

What is a dictionary in Python and how can it be used?

A. A collection of key-value pairs.
B. A collection of values. (Correct)
C. A collection of keys.

Answer:

The correct answer is B. A dictionary in Python is a collection of key-value pairs, where each key is associated with a value. To access a value in a dictionary, you would use its corresponding key.

If you chose option B, you are correct! A dictionary in Python is a powerful data structure that allows you to store key-value pairs. This makes it easy to retrieve values based on their corresponding keys. By using curly braces {} and separating key-value pairs with colons :, you can create a dictionary like this:

my_dict = {'key1': value1, 'key2': value2}

To access a value in the dictionary, you simply provide the associated key within square brackets [] like this:

print(my_dict['key1'])

This will output the value1 associated with 'key1'. Dictionaries are versatile and commonly used in Python for various data manipulation tasks.