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

Concatenating Tuples

In Python, it's possible to combine tuples. This involves forming a new tuple by merging two or more existing ones. You can accomplish this with the + operator. Here's an example to illustrate.


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movie_titles = ("Inception", "Interstellar", "Dunkirk")
release_years = (2010, 2014, 2017)

# Concatenate the tuples
combined_tuple = movie_titles + release_years

print(combined_tuple)

Task

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Create another tuple named availability containing the values 3 (number of available copies) and "Shelf B2" (storage location). Then, concatenate the availability tuple with the movie_details tuple, and print the resulting combined tuple.

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Section 3. Chapter 3

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Concatenating Tuples

In Python, it's possible to combine tuples. This involves forming a new tuple by merging two or more existing ones. You can accomplish this with the + operator. Here's an example to illustrate.


              1234567
            
movie_titles = ("Inception", "Interstellar", "Dunkirk")
release_years = (2010, 2014, 2017)

# Concatenate the tuples
combined_tuple = movie_titles + release_years

print(combined_tuple)

Task

Swipe to show code editor

Create another tuple named availability containing the values 3 (number of available copies) and "Shelf B2" (storage location). Then, concatenate the availability tuple with the movie_details tuple, and print the resulting combined tuple.

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 3. Chapter 3

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

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