What are the advantages of using dictionaries in Python?
Dictionaries in Python offer fast lookups, easy data organization, and flexibility in storing key-value pairs.
Can you give me an example of how to use a dictionary?
Sure! You can create a dictionary like this: my_dict = {'name': 'Alice', 'age': 25}
. You can access values using keys, e.g., my_dict['name']
returns 'Alice'.
What makes dictionaries faster than lists?
Dictionaries use a hash table for storage, allowing for average O(1) time complexity for lookups, while lists require O(n) time.
Are there any limitations to using dictionaries?
Yes, dictionaries require more memory than lists and keys must be immutable types.
How do I iterate through a dictionary?
You can iterate through a dictionary using a for loop: for key, value in my_dict.items(): print(key, value)
.
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