Kursinnehåll
Python Data Structures
Python Data Structures
1. Mastering Python Lists
Creating Lists in Python: Declaring and Initializing ListsList Indexing in Python: Accessing Elements EfficientlyWorking with Nested Lists in PythonPython List Length: Measuring and Managing List SizeModifying Lists in Python: Updating and Changing ElementsUsing the append() Method: Adding Elements to ListsUsing the insert() Method: Placing Elements at Specific PositionsDeleting Elements in Python Lists: Removing Items SafelyUsing the remove() Method: Deleting Specific Elements from Lists
2. Mastering Python Dictionaries
Creating a Dictionary in Python: Storing Key-Value PairsAccessing Dictionary ValuesAccessing Dictionary KeysAdding Items to a Dictionary: Updating Key-Value PairsUsing the del Keyword: Removing Dictionary EntriesUsing the pop() Method: Deleting Elements with Return ValuesUsing the popitem() Method: Removing the Last Inserted ItemUsing the clear() Method: Emptying a Dictionary Completely
3. Mastering Python Tuples
Creating a Tuple in Python: Defining Immutable Data StructuresAccessing Elements in a Tuple: Indexing TechniqueConcatenating Tuples in Python: Merging Immutable SequencesDeleting Tuples in Python: Removing References to TuplesUpdating Tuples in PythonAdding Items to a Tuple: Alternative Approaches Using ListsCounting Elements in a Tuple: Using the count() MethodFinding Elements in a Tuple: Using the index() Method for Lookup
4. Mastering Python Sets
Creating a Set in Python: Defining Unordered CollectionsUsing the add() Method: Adding Single Elements to a SetUsing the update() Method: Merging Multiple Elements into a SetAccessing Elements in a Set: Iteration and Membership TestingUsing the remove() and discard() MethodsUsing the clear() Method: Removing All Elements from a Set
Using the clear() Method: Removing All Elements from a Set
Just like in other data structures, the clear() method completely wipes out all the elements.
Let's say you have a set of favorite movies, but you decide to start fresh and clear the collection:
# Define a set of favorite movies movies = {"Inception", "Interstellar", "Tenet"} print("Original set:", movies) # Clear the set movies.clear() print("After clearing:", movies)
Uppgift
Swipe to start coding
You are given the set of the worst movies by audience ratings, worst_movies.
- Clear this set.
- Use the
clear()method to accomplish this.
Lösning
Byt till skrivbordet för praktisk övningFortsätt där du är med ett av alternativen nedanVar allt tydligt?
Tack för dina kommentarer!
Avsnitt 4. Kapitel 6
Using the clear() Method: Removing All Elements from a Set
Just like in other data structures, the clear() method completely wipes out all the elements.
Let's say you have a set of favorite movies, but you decide to start fresh and clear the collection:
# Define a set of favorite movies movies = {"Inception", "Interstellar", "Tenet"} print("Original set:", movies) # Clear the set movies.clear() print("After clearing:", movies)
Uppgift
Swipe to start coding
You are given the set of the worst movies by audience ratings, worst_movies.
- Clear this set.
- Use the
clear()method to accomplish this.
Lösning
Byt till skrivbordet för praktisk övningFortsätt där du är med ett av alternativen nedanVar allt tydligt?
Tack för dina kommentarer!
Avsnitt 4. Kapitel 6
Byt till skrivbordet för praktisk övningFortsätt där du är med ett av alternativen nedan