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Python Data Structures
course content

Course Content

Python Data Structures

Python Data Structures

1. List
Creating a ListList IndexingNested ListList LengthModifying a ListThe append() MethodThe insert() MethodDeleting ElementsThe remove() MethodList ComprehensionsList Comprehansions with Conditions
2. Dictionary
Creating a DictionaryAccessing Dictionary ValuesAccessing Dictionary KeysAdding ItemsChallenge: Expand the DictionaryThe del KeywordThe pop() MethodThe popitem() MethodThe clear() MethodDictionary ComprehensionsDictionary Comprehension with Condition
3. Tuple
Creating a Tuple Accessing Elements in a TupleConcatenating TuplesDeleting a TupleUpdating a TupleAdding Items to a TupleCounting Elements in a TupleFinding Elements in a Tuple
4. Set
Creating a SetThe add() MethodThe update() MethodAccessing the Elements of a SetThe remove() and discard() MethodsThe clear() Method

bookThe update() Method

The update() method in Python allows you to add multiple elements to a set at once. This method takes an iterable (like a list, tuple, or another set) and adds its elements to the existing set.

The update() method can accept:

  • Lists: [movie1, movie2, ...];
  • Tuples: (movie1, movie2, ...);
  • Other Sets: {movie1, movie2, ...}.

              
12345678

            
# Original set of favorite movies
favorite_movies = {"Inception", "Interstellar", "Tenet"}

# Adding multiple new movies
favorite_movies.update(["Tenet", "Memento", "The Prestige"])

# Print the updated set
print(favorite_movies)
copy

Note

If any element being added already exists in the set, it will not be duplicated. The order of elements in a set is not guaranteed and may vary.

Task
test

Swipe to show code editor

You've watched a few more movies and want to add multiple titles to your favorite_movies set. Use the update() method to add the movies "Memento" and "The Prestige". Print the updated set.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

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Section 4. Chapter 3
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bookThe update() Method

The update() method in Python allows you to add multiple elements to a set at once. This method takes an iterable (like a list, tuple, or another set) and adds its elements to the existing set.

The update() method can accept:

  • Lists: [movie1, movie2, ...];
  • Tuples: (movie1, movie2, ...);
  • Other Sets: {movie1, movie2, ...}.

              
12345678

            
# Original set of favorite movies
favorite_movies = {"Inception", "Interstellar", "Tenet"}

# Adding multiple new movies
favorite_movies.update(["Tenet", "Memento", "The Prestige"])

# Print the updated set
print(favorite_movies)
copy

Note

If any element being added already exists in the set, it will not be duplicated. The order of elements in a set is not guaranteed and may vary.

Task
test

Swipe to show code editor

You've watched a few more movies and want to add multiple titles to your favorite_movies set. Use the update() method to add the movies "Memento" and "The Prestige". Print the updated set.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

Section 4. Chapter 3
toggle bottom row

bookThe update() Method

The update() method in Python allows you to add multiple elements to a set at once. This method takes an iterable (like a list, tuple, or another set) and adds its elements to the existing set.

The update() method can accept:

  • Lists: [movie1, movie2, ...];
  • Tuples: (movie1, movie2, ...);
  • Other Sets: {movie1, movie2, ...}.

              
12345678

            
# Original set of favorite movies
favorite_movies = {"Inception", "Interstellar", "Tenet"}

# Adding multiple new movies
favorite_movies.update(["Tenet", "Memento", "The Prestige"])

# Print the updated set
print(favorite_movies)
copy

Note

If any element being added already exists in the set, it will not be duplicated. The order of elements in a set is not guaranteed and may vary.

Task
test

Swipe to show code editor

You've watched a few more movies and want to add multiple titles to your favorite_movies set. Use the update() method to add the movies "Memento" and "The Prestige". Print the updated set.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

The update() method in Python allows you to add multiple elements to a set at once. This method takes an iterable (like a list, tuple, or another set) and adds its elements to the existing set.

The update() method can accept:

  • Lists: [movie1, movie2, ...];
  • Tuples: (movie1, movie2, ...);
  • Other Sets: {movie1, movie2, ...}.

              
12345678

            
# Original set of favorite movies
favorite_movies = {"Inception", "Interstellar", "Tenet"}

# Adding multiple new movies
favorite_movies.update(["Tenet", "Memento", "The Prestige"])

# Print the updated set
print(favorite_movies)
copy

Note

If any element being added already exists in the set, it will not be duplicated. The order of elements in a set is not guaranteed and may vary.

Task
test

Swipe to show code editor

You've watched a few more movies and want to add multiple titles to your favorite_movies set. Use the update() method to add the movies "Memento" and "The Prestige". Print the updated set.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Section 4. Chapter 3
Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
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