Python Data Structures

Python Data Structures

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1. List

What is a list? A list is an ordered collection that can be modified. It also allows for duplicate elements.

Creating a List

Modifying a List

The append() Method

The insert() Method

Deleting Elements

The remove() Method

List Comprehensions

List Comprehansions with Conditions

2. Dictionary

What is a dictionary? A dictionary is an ordered collection that can be changed, but it doesn't allow duplicate entries. It consists of `key:value` pairs, which are used to optimize its structure.

Creating a Dictionary

Accessing Dictionary Values

Accessing Dictionary Keys

Challenge: Expand the Dictionary

The del Keyword

The pop() Method

The popitem() Method

The clear() Method

Dictionary Comprehensions

Dictionary Comprehension with Condition

3. Tuple

What is a tuple? A tuple is an ordered collection that cannot be altered. It can have duplicate elements. While it's similar to a list, the values in a tuple can be of any type and are indexed by integers. Although not mandatory, it's common to enclose the values of a tuple in parentheses, making them easier to understand in Python.

Creating a Tuple

Accessing Elements in a Tuple

Concatenating Tuples

Deleting a Tuple

Updating a Tuple

Adding Items to a Tuple

Counting Elements in a Tuple

Finding Elements in a Tuple

4. Set

What is a set? In Python, a `set` is an unordered collection that is both `iterable` and `mutable`, with no repeated elements. While the order of items in a set isn't fixed, it can include a variety of elements. A key benefit of using sets over lists is their highly efficient method for determining if an element exists within the set.

The add() Method

The update() Method

Accessing the Elements of a Set

The remove() and discard() Methods

The clear() Method

Course Content

Python Data Structures

Challenge: Expand the Dictionary

Task

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Expand the book dictionary by adding a new key named "genres". The value for this key should be a list of genres that describe the book (e.g., "Fiction", "Dystopian", "Political Fiction").

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Section 2. Chapter 5

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Challenge: Expand the Dictionary

Task

Swipe to show code editor

Expand the book dictionary by adding a new key named "genres". The value for this key should be a list of genres that describe the book (e.g., "Fiction", "Dystopian", "Political Fiction").

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Thanks for your feedback!

Section 2. Chapter 5

Switch to desktop for real-world practiceContinue from where you are using one of the options below

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