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Python Data Structures

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

Nested List

Challenge: Create a List

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

Challenge: Craft the Dictionary

Extraction of Information

Dictionary Comprehensions

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 of a Tuple

Concatenation of Tuples

Delete a Tuple

Update a Tuple

Adding Items

Challenge: Concatenate Tuples

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.

Creating a Set

Add() Method

Update() Method

Accessing the Elements of a Set

Remove() and Discard() Methods

Clear() Method

Adding Items

Let's build a dictionary named student.

Here's how you can add a key-value pair to a dictionary.

The student dictionary includes these pairs:

Key	Value
`'first name'`	`'Ann'`
`'last name'`	`'Elliot'`
`'city'`	`'New York'`
`'country'`	`'USA'`

Note
Single ' ' and double " " quotes in Python are interchangeable and equivalent.

Tarea

Construct the following dictionary: 'name': 'Max', 'position': 'data scientist', 'level': 'junior';
To the existing dictionary, append a new key named experience (as a string) with the value of 1.

¿Todo estuvo claro?

Sección 2. Capítulo 4

Adding Items

Let's build a dictionary named student.

Here's how you can add a key-value pair to a dictionary.

The student dictionary includes these pairs:

Key	Value
`'first name'`	`'Ann'`
`'last name'`	`'Elliot'`
`'city'`	`'New York'`
`'country'`	`'USA'`

Note
Single ' ' and double " " quotes in Python are interchangeable and equivalent.

Tarea

Construct the following dictionary: 'name': 'Max', 'position': 'data scientist', 'level': 'junior';
To the existing dictionary, append a new key named experience (as a string) with the value of 1.

¿Todo estuvo claro?

Sección 2. Capítulo 4